Answer:
He (Helium)
Explanation:
According to the Periodic Table, our noble gases are:
Helium - Element 2
Neon - Element 10
Argon - Element 18
Krypton - Element 46
Xenon - Element 54
Radon - Element 86
Answer:
A. They are isotopes.
Explanation:
An isotope is an element with the same number of protons but different number of neutrons resulting in a varied mass number/molecular weight.
Matter is the correct word.
Chromosomes have genes that determine specific thing about a person (hair color, eye color, how tall or short a person is etc....).