Question

he atomic number of an element:
Question 2 options:

A. Tells you the mass of the atom

B. Tells you the number of energy levels there are around the atom

C. Tells you the identity of the atom

D. Tells you how many valence electrons the atom has

Answer 1

Answer:

option c and d are correct

Answer 2

Atomic number of an element C. Tells you the identity of the atom and D. Tells you how many valence electrons the atom has.  

Explanation:

Atomic number of any element is the number of electrons in each atom of that element.

• Number of electrons is equal to the number of protons in the atom which is the atomic number.

• Every element ever discovered has been given place in the modern periodic table according to its atomic number.

• An atomic number of any element is its identity by which its properties are defined.

• Number of electrons decides that how many valence electrons will that atom has. And so atomic number decides the valence electron of an atom.

• Mass of an atom is decided by the number of protons and number of neutrons in the atom. Mass number of an atom is the sum of subatomic particles in the nucleus of the atom.

• Number of energy levels that an atom should have is decided by other factors as well an not just atomic number.