Answer:
Elements have the same number of energy levels as oxygen.
Elements and definitions
Lithium - Lithium compounds, also known as lithium salts, are primarily used as a psychiatric medication. It is primarily used to treat bipolar disorder and treat a major depressive disorder that does not improve following the use of antidepressants.
Beryllium - Beryllium is a chemical element with the symbol Be and atomic number 4. It is a relatively rare element in the universe, usually occurring as a product of the spallation of larger atomic nuclei that have collided with cosmic rays. Within the cores of stars, beryllium is depleted as it is fused into heavier elements.
Boron - Boron is a chemical element with the symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar System and in the Earth's crust. It constitutes about 0.001 percent by weight of Earth's crust.
Carbon - Carbon is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalent-making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.
Nitrogen - Nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colorless, odorless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter.
Fluorine - Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive, as it reacts with all other elements, except for argon, neon, and helium.
Neon - Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.
Which property is a chemical property of a substance?
reactivity
boiling point
melting point
color
Answer: reactivity
Explanation:
on the test
Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.
Answer:
Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?
Roots: Hey Leaf, of course. What kind of supplies do you need?
Leaf: I need more water and nutrients. Can you send some my way?
Roots: Sure thing, we'll get on it right away. How much do you need?
Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?
Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.
Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.
Roots: Will do, Leaf. Hang in there. Delivery should be there soon.
Which element is represented by this model?
Be; Beryllium
N; Nitrogen
C; Carbon
F: Fluorine
Answer: C; Carbon
Explanation: The model is showing it has 6 electrons, 6 protons, and 6 neutrons. Therefore the element, carbon.
Answer:
Carbon
Ok it needs more characters
PLEASE HELPP
Science
Data
In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.
Answer:
No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.
Energy is inversely proportional to the wavelength of a wave. Which of these waves would have the greatest energy?
Answer: 2
Explanation:
Help i got 5 mins!!!!!!!!!!
No bots or report
Answer:
first option
Explanation:
What is the force called that is applied to an object and it's NOT opposite and/or equal?
i think the answer would be velocity.
Answer:
velocity
Explanation:
What have scientists determined the average salinity of ocean water to equal?
34.5 g/kg
3.45 g/mL
34.5 g/mL
3.45 g/kg
Answer:
3.45 g/kg
Explanation:
the concentration of salt in seawater is about 35 parts per thousand, in other words it is about 3.5% of the weight of the sea water comes from the dissolved salts
Answer:
34.5 g/kg
Explanation:
Identify the most abundant cell type making up the epidermis and provide evidence to support your claim
Answer: A keratinocyte
Explanation: A keratinocyte is the primary cell type (about 90%) within the epidermis which is the outermost layer of the skin. The alternate names for keratinocytes are basal cells since they are found in the basal layer (the stratum basale) of the skin.
How is Earth's surface most likely To
change in a place that has extensive tree growth?
A. Top soil will be carried away by wind and water.
B. cracks in rocks will deepen as the roots grow.
C. Big furrows will form due to increase in rainfall.
D. wear away due to abrasion by vegetation.
Answer:
A. Cracks in rocks will deepen as the roots grow.
The right answer would be Cracks in rocks will deepen as the roots grow.
Phenomenon: Why are seat belts necessary? Seat belts have been placed in cars since the 1960’s. They are a safety feature used to decrease the forces in a car crash. According to Newton’s 1st Law of Motion, identify which of the following statements explains how seat belts lessen the effects of a crash
The burning of fossil fuels affects the atmosphere by
Answer:
adding more heat and cabon dioxide
Please help!!i NEED to get this right
What kind of rocks would you expect to see on Mars? What evidence supports your response?
Award is 100 Points for the First Correct Answer!
Question:
which has more calories : table sugar or aspartame ?
Answer:
Table sugar has more calories than aspartame. A teaspoon of table sugar (4 grams) contains approximately 16 calories, while a teaspoon of aspartame (0.5 grams) contains only 0.4 calories. This is because table sugar is a carbohydrate and contains four calories per gram, while aspartame is a non-nutritive sweetener and is virtually calorie-free.
How many atoms of each element are chemical formula: 3K2O3.
How many atoms of each element are chemical formula: 2H3NCH3Br.
How many atoms of each element are chemical formula: 4Ar2CO3.
Each of them are different questions pls help me!!! I need to get this right to bring my grade up from a C to an A!!!
Answer:
In 3K2O3 - 6 K atoms, 9 O atoms
In 2H3NCH3Br - 12 H atoms, 2 N atoms, 2 C atoms, 2 Br atoms
In 4 Ar2CO3 - 8 Ar atoms, 4 C atoms, 12 O atoms
Explanation:
All you need to do is multiply the coefficient by the number of each atom in the compound. For example, H3NCH3Br has 1 nitrogen, 1 carbon, 1 bromine, and 6 hydrogens. If you have 2H3NCH3Br, just multiply all those numbers by 2.
Pls could help me complete the "standart form" part :(
Answer:
I don’t know bro
Explanation: WHY DID U REMOVE THIS
In humans, these organs are part of a larger system, the ________ system.
A.) Circulatory
B.) Reproductive
C.) Digestive
D.) Nervous
c) Digestive.
The stomach, pancreas, gall bladder are all present in the digestive system.
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
To learn more about Disruptive selection:
https://brainly.com/question/32192613
The molecular diagram of a substance is shown above. The first picture is the substance before it was heated. The second picture is the substance after it was heated.
Which of the following state changes most likely occurred in the diagram above?
A.
liquid to solid
B.
solid to gas
C.
liquid to gas
D.
solid to liquid
How can chemical energy be converted into mechanical energy?
A. turning on a flashlight
B. sharpening a pencil with an electric pencil sharpener
C. heating up bread in a toaster
D. eating breakfast and then going for a run
Answer: D. Eating breakfast and then going for a run.
Explanation:
Eating breakfast is a chemical change and running is a mechanical change.
Fill in the chart to identify how scientists represent matter and chemical changes in matter.
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side
A chemical symbol is a notation of one or two letters representing a chemical element
A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.
what does inquiry process mean in science. answer now plz!!!!! firs one gets a brainly
***URGENT PLEASE**** Select all of the bases listed *
Bleach
NaOH
H2SO4
HCl
Ammonia
HF
Answer:
NaOH (a strong base)
Ammonia ( weak base )
Think about the tools, maps, and models Scientist use to collect data. Describe some of these different weather instruments and how they are used to forecast weather.
Answer: Doppler radar, Satellite data, Radiosondes, Automated surface-observing systems,Supercomputers, AWIPS
Explanation:
Match each letter with the correct label. Use the atom diagram below.
Electron - Nucleus - Proton - Neutron
Answer:
Explanation: First and foremost, we must carefully examine the provided diagram in order to properly name the sections of an atom diagram.
Step-by-step instructions are given along with the answers in sequential sequence.
Correct answer for (A) is Electron since they are present at the outermost shell of an atom.The correct answer for (B) is Neutron since it is the central element of an atom.The proton is the right answer for (C), as it is included in the nucleus grouping with the neutron.The nucleus is the correct option for (D) since it is the primary component of the atom and includes both protons and neutrons.Learn more about the Atom here:
https://brainly.com/question/12578802
What are the three essential theories in Earth science?
Answer:
Three essential theories for Earth Science are the theory of evolution, the theory of plate tectonics, and the theory that human activities are altering Earth's climate
Explanation:
Three essential theories for Earth Science are the theory of evolution, the theory of plate tectonics, and the theory that human activities are altering Earth's climate
Use the terms carbon dioxide, nitrates, phosphates, sulfates, and water to complete the chart that describes the inorganic compounds that provide most of the main elements of life to plants.
Answer: hi imi i new
Explanation:
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom