AQA Chemistry Paper 1 Atomic structure & periodic table Triple K

Neutron

• A

• B

• C

• D

Proton

• A

• B

• C

• D

Electron

• A

• B

• C

• D

Has a mass of 1

• A

• B

• C

• D

Has a mass of 0.002

• A

• B

• C

• D

Has a positive charge

• A

• B

• C

• D

Has a negative charge

• A

• B

• C

• D

Shell

• A

• B

• C

• D

Has no charge

• A

• B

• C

• D

An atom of element Y has: an atomic number of 9• a mass number of 19.

Give the number of electrons in this atom.

Choose from 1 , 9, 10, 19, 28

​ ​ (a)  

• 9
• 10
• 19
• 28
• 1