Atoms and Elements

Question 1

Three components of the atom

Answer 1

Proton
Neutron
Electron

Question 2

Components of the nucleus

Answer 2

Proton + neutron

Question 3

Charge of the nucleus and reason why

Answer 3

+1

Due to charge on protons

Question 4

Relative mass of proton, neutron and electron

Answer 4

1, 1, 0

Question 5

Charge of proton, neutron and electron

Answer 5

+1, 0, -1

Question 6

Electrons exist in what?

Answer 6

Shells

Question 7

Number of electrons is equal to what?

Answer 7

Number of protons

Question 8

What is the overall charge of an atom?

Answer 8

Neutral

Question 9

Why are atoms neutral?

Answer 9

Same number of protons and electrons

Question 10

What is an ion?

Answer 10

An atom or group of atoms that has lost or gained electrons

Question 11

What does the atomic number tell us?

Answer 11

Number of protons

Question 12

What is the mass number?

Answer 12

Total number of protons and neutrons in the atom

Question 13

How do you calculate the number of neutrons?

Answer 13

Mass number - atomic number

Question 14

What is an element?

Answer 14

Substance made up of atoms that all have the same number of protons in their nucleus

Question 15

What is an isotope?

Answer 15

Atom of the same element with a different number of neutrons but same number of protons

Question 16

What is the relative atomic mass?

Answer 16

Average mass which takes into account all the different masses and amounts of all the isotopes of that element

Question 17

What is another word for amount

Answer 17

Abundance

Question 18

how do you calculate the relative atomic mass?

Answer 18

Sum of (isotope abundance x isotope mass number) / sum of abundances of all the isotopes