Answer:
The Correct Answers Are: The Entire Green Box: Chemical Equation B (The Blue Box): Reactants C (The Arrow): Reacts To Forms D (The Numbers): Coefficient E (The Purple Box): products
Electrons are particles that have a negative charge. Therefore, an element in a neutral state will have the same number of protons and electrons.since the atomic number corresponds to the number of protons. atomic number of carbon is 6, so number of electron is also 6
To find the number of neutrons, you will need to subtract the atomic number from the atomic mass.
13 - 6 = 7 neutrons
Its already balanced, no balancing required
Answer:
Element Helium have<u> 2 energy levels. </u>
Explanation:
<u>HELIUM -</u> With the symbol He and the atomic number 2, helium is a chemical element. It is a colorless , odorless, tasteless, non-toxic, inert, monatomic gas that is the first in the periodic table in the noble gas group. Of all the elements, its boiling point is the lowest.
At about 24 % of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined, it is present. In both the Sun and Jupiter, its abundance is identical to this. This is due to helium-4's very high nuclear binding energy (per nucleon) with respect to the next three elements following helium.
<u>Hence , the answer is 2 energy levels in Helium atom.</u>
