AQA Trilogy- atomic structure and the periodic table

Question 1

Elements in the periodic table are arranged in order of number of

Accepted Answer

protons

Question 2

The first electron shell contains a maximum of _ electrons

Accepted Answer

2

Question 3

The nucleus of an atom is

Accepted Answer

postive

Question 4

The second electron shell contains a maximum of _ electrons

Accepted Answer

8

Question 5

Atoms overall charge is

Accepted Answer

neutral

Question 6

How many elements are there?

Accepted Answer

100

Question 7

The third electron shell contains a maximum of _ electrons

Accepted Answer

8

Question 8

Which of these is not a separation technique

Accepted Answer

melting

Question 9

Element with the chemical symbol O

Accepted Answer

Oxygen

Question 10

The relative mass of a neutron is

Accepted Answer

1

Question 11

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

Accepted Answer

Isotopes

Question 12

The nucleus contains

Accepted Answer

protons and neutrons

Question 13

The relative mass of a proton is

Accepted Answer

1

Question 14

The atomic mass is the number of

Accepted Answer

protons and neutrons

Question 15

All substances are made from

Accepted Answer

atoms

Question 16

The relative mass of an electron is

Accepted Answer

very small, 0

Question 17

The atomic number is the number of

Accepted Answer

protons

Question 18

Compounds are

Accepted Answer

two or more elements chemically bonded

Question 19

The relative charge of a neutron is

Accepted Answer

0

Question 20

Most of the mass of an atom is found in

Accepted Answer

nucleus

Question 21

The relative charge of a proton is

Accepted Answer

+1

Question 22

A mixture is

Accepted Answer

two or more elements mixed together

Questions 22