Atomic Theory Vocab

Question 0

Neutron

Answer 0

0 (neutral): mass number (protons and neutrons)-atomic number (protons)

Question 1

Proton

Answer 1

+ :atomic number

Question 2

Electrons

Answer 2

• :equal to number of protons

Question 3

Isotopes

Answer 3

Atoms of same element, different number of neutrons - (weight not chemical properties) change (mass number changes)

Question 4

Relative atomic mass

Answer 4

Average mass of an atom compared to mass of 12(upper) 6(lower) C - has a mass of 12 on the atomic scale
(Percentage of abundance of first isotope/100 x mass number of isotope) + (same for each isotope)