Define relative atomic mass

The average mass of the atoms of 1 element divided by 1/12 of carbon 12

An isotope is a version of an element with the same number of electrons and protons but with a different number of neutrons

Define 1st ionisation energy

The amount of energy needed to remove 1 mole of electrons from 1 mole of atoms in the gaseous state

X --------> X(+) + e(-) (g) (g)

Ionisation energy Electronegativity

Bond strength and structure of an element

Test

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1Define relative atomic mass
1. AThe average mass of the atoms of 1 element divided by 1/12 of carbon 12
2. BOr Nah
2Define Isotopes
1. AAn isotope is a version of an element with the same number of electrons and protons but with a different number of neutrons
2. Bor nah
3Define 1st ionisation energy
1. AThe amount of energy needed to remove 1 mole of electrons from 1 mole of atoms in the gaseous state
2. Blol
4The equation fro 1st i.e
1. A X --------> X(+) + e(-)
  (g) (g)
2. Bme + u = bad equation
5Moving Left to Right:
What increases
1. AIonisation energy
  Electronegativity
2. Bur mom
6Moving Left to Right:
What decreases
1. Aatomic radii
2. Basdfghjk
7What are the melting and boiling points linked to
1. ABond strength and structure of an element
2. Bha
8what is another name for intermolecular forces
1. Avan der waals
2. Bnarwhals