1(c) Atomic Structure

Question 1

Atom

Answer 1

Smallest piece of an element that can be still recognised as that element

Question 2

Molecule

Answer 2

2 or more atoms chemically bonded together

Question 3

Atomic Number

Answer 3

Number of protons in nucleus of an atom

Question 4

Mass number (Ar)

Answer 4

Number of protons + neutrons in nucleus of an atom

Question 5

Isotopes

Answer 5

Atoms with:
The same number of protons
Different number of neutrons

Have the same chemical properties

Question 6

Calculating Ar from isotopes