The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons.
Answer:
19 and below because a whole number is just a number that isn't a fraction. They are basic counting numbers
Explanation:
Answer:
they are both planets they are both made of rock and metel
Explanation:
A closed circle means the number is included and an open circle means its not.
