Atomic structure

Question 1

Nucleus

Answer 1

This contains protons and neutrons.

Question 2

Properties of protons

Answer 2

They have a positive charge.

They are in the centre of the atom,making up the nucleus.

Question 3

Properties of neutrons

Answer 3

It was found by chadwick
Has a relative mass of 1
Has a relative charge of 0

Question 4

Properties of electrons

Answer 4

Electrons are the same as the number of protons in an atom.

Question 5

Atomic number

Answer 5

The number of protons

Question 6

Mass number

Answer 6

The total number of protons and neutrons in a nucleus.

Question 7

Isotopes

Answer 7

Atoms of same element,different mass numbers,same number of protons and different number of neutrons.

Question 8

Group number

Answer 8

a column of elements in the periodic table of the chemical elements

Question 9

Period number

Answer 9

number that is given to a group of elements across the periodic table that have made a round from completing its outer electron shell.

Question 10

Electron arrangment

Answer 10

way in which electrons are arranged in an atom .