Chemistry Gcse - Atomic Structure ( Including Ispotopes And Electron Shells )

Question 1

In the centre of every atom there is a …

Answer 1

Nucleus !

Question 2

Do protons have a positive or negative charge (👍or👎)

Answer 2

Positive ( PROtons)

Question 3

Do neutrons have a charge ?

Answer 3

No they don’t !

Question 4

What does the top number of an element tell us ?

Answer 4

‘ atomic mass number ‘= total number of protons and neutrons

Question 5

How do you work out the electrons ?

Answer 5

Atomic mass - atomic number !

Question 6

What does the atomic number tell us ?( bottom number of element )

Answer 6

Number of protons and electrons

Question 7

What is an isotope ?

Answer 7

Isotopes are atoms with SAME number of protons ( bottom number of element stays the same ) and the TOP number changes each time ( atomic mass changes )

Question 8

Does an isotope have the same number of protons ?

Answer 8

YES

Question 9

Does an isotope have the same number of neutrons each time … ?

Answer 9

No .

Question 10

What are gamma rays , beta minus and alpha all examples of what process regarding isotopes ( physics link )

Answer 10

Process called RADIOACTIVE DECAY

Question 11

What happens when an electron gets’ EXCITED ‘

Answer 11

Another outer shell will appear ! - as the energy levels increase so do the amount of outer shells ( rings )

Question 12

Will there be more protons or electrons left during ionisation ?

Answer 12

More PROTONS

Question 13

When there are more protons than electrons what is it now called ( no longer an atom ) it’s called …

Answer 13

Positive/ negative Ion

Question 14

What does ionising radiation do to?

Answer 14

Knocks away electrons from the outer shells !