Atomic structure - AQA Synergy

1

What does the plum pudding model of the atom show?

2

What part of an atom was discovered as a result of an experiment where alpha particles were scattered by gold foil?

3

What is the radius of a typical atom?

4

What is the relative mass and charge of a neutron?

5

An atom has 13 protons and 14 neutrons. What is its mass number?

6

An atom has an atomic number of 9 and a mass number of 19. How many protons, neutrons and electrons does it have?

7

What are isotopes?

8

The numbers of protons and neutrons in four atoms is given below. Which two atoms are isotopes of the same element? W: 8 protons and 8 neutrons X: 8 protons and 10 neutrons Y: 10 protons and 8 neutrons Z: 9 protons and 10 neutrons

9

What is the electron configuration of a chlorine atom (atomic number 17)?

10

An element has the electron configuration 2,8,5. What period is it in?