Periodic properties

Question 1 of 10

The energy needed to remove one mole of electrons from one mole of gaseous atoms is the

Question 2 of 10

The modern periodic table arranges elements in order of

Question 3 of 10

Group 1 elements are called the

Question 4 of 10

Across Period 3 from sodium to chlorine, the elements change from

Question 5 of 10

The second ionisation energy of sodium is very high because

Question 6 of 10

Which element has the highest electronegativity?

Question 7 of 10

Down Group 1, the reactivity of the alkali metals

Question 8 of 10

Which element has the highest first ionisation energy?

Question 9 of 10

Elements in Group 0 (18) are unreactive because they

Question 10 of 10

Electron affinity is the energy change when