matter

Question 1

what do atoms consist of?

Answer 1

protons, electrons and neutrons

Question 2

what is the relative charge of protons?

Answer 2

+1

Question 3

what is the relative charge of electrons?

Answer 3

none

Question 4

what is the relative charge of neutrons?

Answer 4

-1

Question 5

what is the relative mass of protons?

Answer 5

1

Question 6

what is the relative mass of neutrons?

Answer 6

1

Question 7

what is the relative mass of electrons?

Answer 7

1/840

Question 8

how do you work out the number of protons in an atom?

Answer 8

the atomic number

Question 9

how do you work out the number of neutrons in an atom?

Answer 9

atomic mass - atomic number

Question 10

how do you work the out the number of electrons in an atom?

Answer 10

same as protons

Question 11

what goes in the middle of an atom?

Answer 11

protons and neutrons

Question 12

how many electrons can the first ring hold?

Answer 12

2

Question 13

how many electrons can the second ring hold?

Answer 13

8

Question 14

define atomic number

Answer 14

the number of protons

Question 15

define mass number

Answer 15

the number of protons and neutrons