2.1 Simple Electronic Structure

Question 1

Electrons are arranged outside the nucleus in

Answer 1

Energy levels or quantum shells

Question 2

The principal energy levels or principal quantum shells are numbered according to

Answer 2

How far away they are from the nucleus

Question 3

The electrons in quaum shells further away from the nucleus have

Answer 3

More energy and are held less tightly to the nucleus

Question 4

What is electronic structure/ electronic configuration

Answer 4

The arrangement of electrons in an atom

Question 5

Each electron in an atom has

Answer 5

Its particular average amount of energy

Question 6

Energy levels are split into sub-levels called

Answer 6

s,p,d,f

Question 7

Define electronic configuration

Answer 7

A way of representing the arrangement of the electrons in atoms showing the principal quantum shells, the sub shells and the number of electrons present. e.g 1s22s2p3. The electrons may also be shown in boxes

Question 8

Upto how many electrons can principal quantum shell 1 hold

Answer 8

Up to 2 electrons

Question 9

Upto how many electrons can principal quantum shell 2 hold

Answer 9

Up to 8 electrons

Question 10

Upto how many electrons can principal quantum shell 3 hold

Answer 10

18 electrons

Question 11

Upto how many electrons can principal quantum shell 4 hold

Answer 11

32 electrons