Atomic Structure

Question 1

What do atoms consist of

Answer 1

A central nucleus composed of protons(+) and neutrons(0)

Surrounded by electrons(-) orbiting in shells

Question 2

atomic number

Answer 2

number of protons

Question 3

Mass number

Answer 3

total number of protons and neutrons

Question 4

Calculate relative atomic mass

Answer 4

using the periodic table

from the relative abundances of its isotopes