AQA GCSE Chemistry 4.1 Atomic structure and the periodic table overview quiz quiz

Two or more elements chemically bonded in fixed proportions

Two or more separate substances that are simply mixed and not chemically bonded

A substance made of only one type of atom

A mixture that can be separated by filtration

Charge $+1$, mass $1$

Charge $0$, mass $1$

Charge $-1$, mass very small

Charge $0$, mass very small

$17$

$20$

$37$

$3$

Atoms with different numbers of protons

Atoms with the same number of neutrons but different numbers of protons

Atoms with different numbers of electrons only

Atoms with the same number of protons but different numbers of neutrons

$2,8,8,2$

$2,8,10$

$2,10,8$

$2,8,8,8$

In order of steadily increasing relative atomic mass

In order of increasing atomic number

Alphabetically by element name

By the number of neutrons

He made arithmetic errors

To make the table symmetrical

For elements he believed had not yet been discovered

Because some of the known elements were radioactive and unstable

A $1-$ ion

A $2+$ ion

A $2-$ ion

A $1+$ ion

It increases down the group

It decreases down the group

It stays the same

It increases then decreases

It increases down the group

It decreases down the group

It stays the same

It is the same as Group 1

They each have just one electron in their outer shell

They are all metals

They have full outer shells of electrons

They have no electrons

Electrons and positive charge are spread evenly all through the whole atom

Atoms are solid spheres

The atom has no nucleus

Mass and positive charge are concentrated in a tiny central nucleus