Electrons, Bonding and Structure - exam practice
Electrons, Bonding and Structure
Question 1 of 22
1 of 22
How many orbitals are there, in total, in the first three energy levels of an atom?
Question 2 of 22
2 of 22
This question refers to isolated gaseous atoms.
In which atom are all electrons paired?
Question 3 of 22
3 of 22
The electronic configuration of the two outermost shells of an atom is 3s23p63d54s2.
What is this atom?
Question 4 of 22
4 of 22
Which statement about p-orbitals is correct?
Question 5 of 22
5 of 22
An element forms ions with a charge of 3+.
What could be the electron configuration of the atoms of the element?
Question 6 of 22
6 of 22
What is the shape of an s-orbital?
Question 7 of 22
7 of 22
Which element has atoms with the greatest number of singly occupied orbitals?
Question 8 of 22
8 of 22
What is the electron configuration of V2+ in the ground state?
Question 9 of 22
9 of 22
Which is the electron configuration of an atom with only two unpaired electrons?
Question 10 of 22
10 of 22
The similarity between metallic elements and ionic compounds is that both
Question 11 of 22
11 of 22
A molecule is
Question 12 of 22
12 of 22
Metals are good conductors of electricity because
Question 13 of 22
13 of 22
Which of these has a dative covalent bond?
Question 14 of 22
14 of 22
The melting temperature of sodium is lower than the melting temperature of magnesium. The best explanation for this is
Question 15 of 22
15 of 22
Which statement about a lattice of sodium chloride is correct?
Question 16 of 22
16 of 22
Which molecule is not able to form a co-ordinate bond with another species?
Question 17 of 22
17 of 22
In which substance do covalent bonds break when it melts?
Question 18 of 22
18 of 22
Which substance contains delocalised electrons?
Question 19 of 22
19 of 22
Which compound contains a co-ordinate bond?
Question 20 of 22
20 of 22
Which is not responsible for conduction of electricity?
Question 21 of 22
21 of 22
Which set of elements in the solid state contain a simple molecular lattice, a giant covalent lattice and a giant metallic lattice?
Question 22 of 22
22 of 22
The structural feature that graphene and graphite have in common is that the carbon atoms are arranged in...