Atomic structure

Question 1

what are atoms?

Answer 1

atoms are the smallest particle of an element that can exist

Question 2

what is a molecule?

Answer 2

formed when a atom is join by chemical bonds

Question 3

what is the relative mass for neutron,proton and electron?

Answer 3

• proton = 1
• neutron = 1
• electron : 1/1836 =0

Question 4

what is the relative charge for proton,neutron and electron

Answer 4

• proton = +1
• neutron =0
• electron =-1

Question 5

what is meant by the term atomic number?

Answer 5

Atomic (proton)Number =number of protons (= number of electrons if it’s an atom, because atoms are neutral)

Question 6

what is meant by the term mass number?

Answer 6

number of protons + neutrons

Question 7

what is meant by the term isotopes?

Answer 7

differnt atom containing same element whihc has the same number of protons and different number of neutrons in the nuclei

Question 8

what is meant by the term relative mass ?

Answer 8

a average value that takes the abundance of a isotope in a element

Question 9

what is the relative atomic mass formula?

Answer 9

(mass of isotope A + % of isotope A) + (mass of isotope b + % of isotope b)/100