Answer:
The nuclear charge increases, but the number of inner shielding electrons stays the same.
Explanation:
Their shielding does not change, so the effective nuclear charge — the charge felt by a valence electron — increases.
The valence electrons are pulled closer to the nucleus, decreasing the atomic radius.
For example, consider the elements of Period 3.
The number of protons increases as you go from one element to the next, but the number of inner electrons is constant.
Pure air is a mixture of several gases that are invisible and odorless. Consists of 78% nitrogen, 21% oxygen, and less than 1% of argon, carbon dioxide.
Everything that can be measured is made up of matter and that is made up of small units called atoms.
Autotrophs is the answer. You know that by the word auto in the first half of the word for future reference
oxygen 16 is a stable isotope and has a natural abundance of 99.762%
nitrogen 16 is an unstable isotope with a half life of 7.13 seconds meaning it is nearly nonexistent
joey is probably thinking of nitrogen 14 which is a stable isotope and has a natural abundance of 99.6%
oxygen 16 - <span>https://en.wikipedia.org/wiki/Isotopes_of_oxygen
</span><span>nitrogen 16/14 - https://education.jlab.org/itselemental/iso007.html</span>
