Structure of an atom- year 9 Chemistry

What is the number of electrons equal to?

The number of protons in the nucleus

What do atoms have?

No overall electrical charge

What is the number of protons in an atom?

its atomic number

what are the 3 subtonic particles in an atom?

proton, neutron and electron

where are protons and neutrons located?

the centre of an atom in the nucleus

where are electrons located?

the outer shells outside of the nucleus

what is a protons relative charge ?

+1

what is a protons relative mass?

1

what is an electrons relative charge

-1

what is an electrons relative mass?

0

what is a neutrons relative charge?

0

what is a neutrons relative mass?

1

how do you find the number of rpotons?

bottom number=atomic number= number of protons

how do you find the number of electrons?

number of protons= number of electrons

how do you find the number of neutrons?

mass number- atomic number