Atomic Structure And The Periodic Table

Question 1

What is the nucleus of an atom

Answer 1

It is in the middle of the atom 
It contains protons and neutrons 
It has a positive charge 
It is almost the whole mass of the atom 
But only a tiny part of the atom

Question 2

What are electrons

Answer 2

They move around the nucleus 
They are in shells 
They have a negative charge
They are tiny and have very little mass but move over a big area 
Their relative mass is 1/2000

Question 3

What are protons

Answer 3

They’re positive
They are in the nucleus
They have a mass of 1

Question 4

What are neutrons

Answer 4

They are neutral
They are In the nucleus
They have a mass of 1

Question 5

How do you work out the number if protons and electrons

Answer 5

They are the same as the atomic number

Question 6

How do you find the number of neutrons

Answer 6

The mass number - the atomic number

Question 7

How many electrons can be in each shell

Answer 7

2
8
8

Question 8

What are isotopes

Answer 8

Different atomic forms of the same element

They have the same number of protons but a different number of neutrons

Question 9

How do you work out the relative atomic mass of an element

Answer 9

(Ram of Isotope X amount) + (ram of Isotope X amount)/

Sum of relative abundance

Question 10

Why was the periodic table so helpful

Answer 10

It could predict what undiscovered elements would be like

Question 11

What are the groups called and their charges

Answer 11

Alkali metals +1
Group 2 +2
Group 3 +3
Group 4 
Group 5 -3
Group 6 -2
Halogens -1
Noble gases 0