The Periodic Table
198 questions· page 1 of 20
Element X is in Period 2 of the Periodic Table. X reacts with magnesium to form an ionic compound with the formula .
What is X?
Options
A chlorine
B fluorine
C oxygen
D sulfur
Rubidium is an element in Group I of the Periodic Table.
Which statement about rubidium is correct?
Options
A It has a higher melting point than potassium.
B It reacts with water to produce an acidic solution.
C It reacts with water to produce oxygen gas.
D It is more reactive than potassium.
Which statement is correct?
Options
A Noble gases are unreactive because they all have eight electrons in their outer shells.
B The Group VII element astatine, , is expected to be a black solid at room temperature.
C The reactivity of the elements in both Group I and Group VII increases down the group.
D When aqueous chlorine is added to aqueous potassium bromide, there is no change in colour.
M is a metal that forms coloured compounds.
M is extracted from its oxide either by heating with carbon or by electrolysis.
M reacts with dilute hydrochloric acid.
What is M?
Options
A copper or magnesium
B copper only
C iron or magnesium
D iron only
Which statement about elements in the Periodic Table is correct?
Options
A Across a period, elements at the left-hand side of the Periodic Table are more metallic than those at the right-hand side.
B Down a group, elements at the top of the group lose electrons more readily than those at the bottom of the group.
C Elements in the same group of the Periodic Table have the same number of completed shells of electrons.
D Elements in the same period of the Periodic Table have the same number of electrons in the outer shell.
Rubidium and caesium are both elements in Group I of the Periodic Table.
Which prediction comparing rubidium and caesium is correct?
Options
A Caesium has the higher density and the greater reactivity.
B Caesium has the higher density; rubidium has the greater reactivity.
C Rubidium has the higher density and the greater reactivity.
D Rubidium has the higher density; caesium has the greater reactivity.
Three statements about the halogens are listed.
- All halogens are non-metallic diatomic molecules.
- Chlorine displaces both bromine and iodine from aqueous solutions of their salts.
- The halogens become more reactive on descending Group VII of the Periodic Table.
Which statements are correct?
Options
A 1, 2 and 3
B 1 and 2 only
C 1 and 3 only
D 2 and 3 only
Which statements about neon are correct?
- It is unreactive.
- It has strong intermolecular forces.
- It has a full outer shell of electrons.
Options
A 1, 2 and 3
B 1 and 3 only
C 1 only
D 3 only
Part of the Periodic Table is shown.
W, X, Y and Z are not the correct symbols of the elements.
Which statement is correct?
Options
A The compound formed between X and W has covalent bonds.
B W and Y are both gases at r.t.p. that contain covalent bonds.
C X and Y react together more vigorously than Z and Y at r.t.p.
D X and Z both have two outer-shell electrons.
The Group I metals lithium, sodium and potassium show trends in their melting points and in their reactions with water.
Which statement is correct going down the group from lithium to potassium?
Options
A Their melting points decrease and their reaction with water becomes less vigorous.
B Their melting points decrease and their reaction with water becomes more vigorous.
C Their melting points increase and their reaction with water becomes less vigorous.
D Their melting points increase and their reaction with water becomes more vigorous.