atomic structure

Question 1

relative mass of a proton

Answer 1

1

Question 2

relative mass of an electron

Answer 2

1/1840

Question 3

relative mass of neutron

Answer 3

1

Question 4

relative charge of an electron

Answer 4

-1

Question 5

relative charge of a neutron

Answer 5

0

Question 6

relative charge of a proton

Answer 6

+ 1

Question 7

explain why atoms are neutral

Answer 7

they have the same number of positive protons as negative electrons

Question 8

define the term ‘isotopes’

Answer 8

isotopes are atoms with the same number of protons but a different number of neutrons

Question 9

how do you find the mass number

Answer 9

protons + neutrons added together

Question 10

how do you find the atomic number

Answer 10

it is the same as the proton and electrons numbers

Question 11

calculate the relative atomic mass

Answer 11

(mass x abundance) + (mass x abundance) / total abundance

Question 12

how to find the amount of occupied electrons shells

Answer 12

you look at the period it is in

Question 13

how to find the amount of outer-shell electrons

Answer 13

you look at the group it is in

Question 14

what is the definition of an atom

Answer 14

the smallest particles of an element that consists of electrons surrounding a nucleus that contains neutrons and protons

Question 15

define relative atomic mass

Answer 15

the weighted average mass of all the isotopes of an element compared to 1/12th of the mass of carbon 12

Question 16

what is a nucleon

Answer 16

same as the mass number

Question 17

atoms are arranged in the period table in the order of what

Answer 17

proton number

Question 18

what is RAM

Answer 18

the weighted average mass of all the isotopes in an element compared to 1/12th of the mass of carbon-12