T1

Question 1

Define ionisation energy

Answer 1

The energy needed to remove 1 electron from each atom in 1 mol of gaseous atoms to form 1 mole of gaseous 1+ ions.

Question 2

What is the relative mass of an electron?

Answer 2

1/1840

Question 3

What is the relative atomic mass?

Answer 3

the average mass of an atom of an element relative to 1/12th the mass of an atom of carbon 12.

Question 4

What are the steps in mass spectrometry?

Answer 4

Vaporisation
Ionisation
Atomisation
Deflection
Detection

Question 5

What is an orbital?

Answer 5

The region of space around the nucleus of an atom which can hold up to 2 eletcrons with opposite spins.

Question 6

What is the emission spectra?

Answer 6

In the ground state, atoms have electrons in their lowest possible energy levels. The atoms take in energy and the electrons move to a higher enegy level, which is futher away from the nucleus. Electrons release energy by dropping form higher to lower energy levels.

Question 7

What are successive ionisation energies?

Answer 7

The energy required to remove 1 electron from 1 mole of gaseous 1+ ions to produce 1 mole of gaseous ions with a 2+ charge.