Atoms

Question 1

Position of a proton in an atom

Answer 1

Nucleus

Question 2

Position of a neutron in an atom

Answer 2

Nucleus

Question 3

Position of an electron in an atom

Answer 3

Shells

Question 4

Relative mass of a proton

Answer 4

1

Question 5

Relative mass of a neutron

Answer 5

1

Question 6

Relative mass of an electron

Answer 6

Negligible, 1/1836

Question 7

Relative charge of a proton

Answer 7

+1

Question 8

Relative charge of a neutron

Answer 8

0

Question 9

Relative charge of an electron

Answer 9

-1

Question 10

What does atomic number mean?

Answer 10

Number of protons in an element

Question 11

What does mass number mean?

Answer 11

The number of protons and neutrons in an element

Question 12

What is an isotope?

Answer 12

Atoms of the same element with the same number of protons and different number of neutrons

Question 13

What is relative atomic mass?

Answer 13

It is the mass of an element taking into account the different isotopes present

Question 14

Bromine contains 50.5% Bromine-79 and 49.5% Bromine-81
Calculate the RAM

Answer 14

50.5x79 + 49.5x81 /100

Question 15

How to find the electronic configuration of an element by their positions on the periodic table

Answer 15

Period number: tells us the number of shells in use
Group number: tells us the number of electrons in the outer shell

Question 16

How many electrons can each shell hold?

Answer 16

2,8,8,2