1.1 Particles - Atomic Structure

Question 1

Charge of proton:

Answer 1

+ 1.60 x 10^-19 C

Question 2

Charge of neutron:

Answer 2

0 C

Question 3

Charge of electron:

Answer 3

• 1.60 x 10^-19 C

Question 4

Mass of proton:

Answer 4

1.673 x 10^-23 kg

Question 5

Mass of neutron:

Answer 5

1.675 x 10^-23 kg

Question 6

Mass of electron:

Answer 6

9.11 x 10^-31 kg

Question 7

Specific charge:

Answer 7

Charge per unit mass; calculated by dividing charge by mass

Question 8

Specific charge of proton:

Answer 8

9.58 x 10^7 Ckg-1

Question 9

Specific charge of electron:

Answer 9

-1.76 x 10^11 Ckg-1

Question 10

Z in notation:

Answer 10

proton number

Question 11

A in notation:

Answer 11

nucleon number

Question 12

Isotopes:

Answer 12

Atoms of the same element which have the same number of protons but a different number of neutrons

Question 13

Specific charge calculation:

Answer 13

Z(charge on a proton) / ( Z x mass of a proton) + (A-Z x mass of a neutron)

Question 14

Specific charge of an ion calculation:

Answer 14

+/- number of electrons gained or lost x charge on an electron / (mass of protons) + ( mass of neutrons) + (mass of electrons)

Question 15

Specific charge of ions:

Answer 15

Positive ions have positive specific charges as fewer electrons than protons, and vice versa for negative