Atomic Structure

Question 1

Relative mass and charge of proton neutron and electron

Answer 1

PROTON - rm = 1 charge = 1
NUETRON - rm = 1 charge = 0
Electron - rm = 1/1800 charge = -1

Question 2

Mass number is

Answer 2

Total number of protons and total number of neutrons in the nucleus

Question 3

Atomic number is

Answer 3

Number of protons

Question 4

What is an isotope

Answer 4

An atom with same number of protons and a different number of neutrons

Question 5

Equation to work out relative atomic mass of an element

Answer 5

Ar = (mass1 x abundance1)+ mass2 x abundance 2)—
——————————————————
Total abundance