Elements

Question 1

What determines what the type of atom is ?

Answer 1

Atoms have different numbers of protons, neutrons and electrons, but, its the number of protons in the nucleus which determines what type of atom it is

Question 2

What is a element ?

Answer 2

substance which contains atoms with same number of protons
There are about 100 different elements

Question 3

All atoms of a particular element have …
Different elements have …

Answer 3

same number of proton

atoms with different number of protons

Question 4

atoms represented by

Answer 4

symbols

Question 5

Define isotopes

Answer 5

Different forms of same atom which have same number of protons but different number of Neutrons.

So they have same atomic number, different mass number

Question 6

Why is relative atomic mass used?

Answer 6

many elements can exist as a number of different isotopes - its an average mass taking into account different masses and abundances

Question 7

relative atomic mass formula

Answer 7

sum of - isotope abundance x isotope mass number / sum of abundance of all the isotopes

Question 8

Do question 5

Answer 8

AQA