Atomic Structure

Question 1

What are the subatomic particles of an atom?

Answer 1

Proton, neutron, electron

Question 2

Relative charge of a proton is..

Answer 2

+ 1

Question 3

Relative charge of a neutron is…

Answer 3

0

Question 4

Relative charge of an electron is…

Answer 4

-1

Question 5

Relative mass of a proton is…

Answer 5

1

Question 6

Relative mass of a neutron is…

Answer 6

1

Question 7

Relative mass of an electron is…

Answer 7

Very small , 1/1840

Question 8

What is atomic number?

Answer 8

Number of protons ( and electrons as they have the same amount)

Question 9

What is mass number?

Answer 9

Total number of protons and neurons

Question 10

What is an atom?

Answer 10

An atom is the smallest particle of matter in an element

Question 11

What is an ion?

Answer 11

An ion is a charged atom meaning it has lost or gained electrons

Question 12

What is a molecule?

Answer 12

A molecule is a group of 2 or more atoms that are chemically bonded.

Question 13

What is an isotope?

Answer 13

The same element with different number of neutrons but the same number of protons

Question 14

Define relative atomic mass

Answer 14

It is the average mass of an atom of an element compared to 1/12 of the mass of an atom of carbon12

Question 15

Define relative formula mass

Answer 15

The sum of all the atomic masses of each atom in a molecule

Question 16

Define isotopic Mass

Answer 16

Mass of one atom of one isotope of an element relative to 1/12 of the mass of an atom of carbon-12

Question 17

Define relative molecular mass

Answer 17

Sum of the reactive atomic masses of all the atoms in the molecular formula of an element or compound

Question 18

How to work out relative formula / molecular/ isotopic

Answer 18

Add up each atomic mass of each compound / molecule ect…