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- Q1
An aluminium atom has a nucleon number of 27 and a proton number of 13.
How many neutrons does this aluminium atom contain?
14
27
13
40
30s - Q2
1. An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.
What is Q?
Yttrium
Strontium
Calcium
Potassium
30s - Q3
The table shows the atomic structure of four atoms.
Which atom is not a metal?
B
D
C
A
30s - Q4
Which statement about atoms is correct?
The nucleon number is the number of neutrons.
Atoms contain protons and electrons in the nucleus.
Neutrons are negatively charged.
Protons are positively charged.
30s - Q5
Which diagram correctly shows the ions present in the compound potassium fluoride?
30s - Q6
What do the nuclei of 11H hydrogen atoms contain?
electrons and protons
protons only
neutrons only
electrons and neutrons
30s - Q7
The table shows the nucleon number and the number of neutrons in one atom of isotopes W, X, Y and Z.
Which statement about W, X, Y and Z is correct?
W and X are isotopes of the same element.
Y and Z are isotopes of elements in the same period of the Periodic Table.
Z has a higher proton number than Y.
X and Y are isotopes of elements in the same group of the Periodic Table.
30s - Q8
The relative atomic mass of chlorine is 35.5.
When calculating relative atomic mass, which particle is the mass of a chlorine atom compared to?
a neutron
a proton
an atom of hydrogen-1
an atom of carbon-12
30s - Q9
Atoms contain electrons, neutrons and protons.
What is the definition of nucleon number?
the number of protons in the nucleus of an atom
the total number of particles in an atom
the number of neutrons in the nucleus of an atom
the total number of neutrons and protons in the nucleus of an atom
30s - Q10
What happens when a bond is formed between a green gaseous element and a soft metallic element?
The gas atoms lose an electron.
The two elements share a pair of electrons.
The metal atoms gain an electron.
The gas atoms gain an electron.
30s - Q11
Solder is an alloy of lead and tin. It is used for joining pieces of metal.
Which statement about solder is correct?
It contains lead and tin chemically combined.
It can be represented by a chemical formula.
It contains a mixture of lead and tin.
It has a higher melting point than lead or tin.
30s
