WorksheetsAQA C1.1 Chemistry (WW)
Total questions: 41
Worksheet time: 32mins
Name
Class
Date
1.
Which of the following statements is NOT true?
a)
Different elements have different number of protons.
b)
Atoms have the same number of electrons and protons.
c)
To calculate the number of neutrons you need to half the atomic mass.
d)
Atoms contain electrons, protons and neutrons.
2.
Atoms have:
a)
Positive charge
b)
Negative charge
c)
No overall charge
3.
Charge of a proton is:
a)
2
b)
+1
c)
-1
d)
0
4.
Charge of an electron is:
a)
+1
b)
-1
c)
0
d)
2-
5.
Charge of a neutron is:
a)
no charge
b)
-1
c)
+1
d)
2
6.
Where can you find most of an atom's mass?
a)
In the electron cloud
b)
in the orbitals around the nucleus
c)
in the nucleus
d)
in a doctor's office
7.
The sub-atomic particles of an atom include all of the following EXCEPT
a)
protons
b)
elements
c)
neutrons
d)
electrons
8.
What does the atomic number of an element represent?
a)
number of protons (or electrons) in an atom
b)
number of neutrons in an atom
c)
mass of an atom
d)
charge of an atom
9.
How many protons does an Aluminum atom have? (use the picture to help you)
a)
27
b)
13
c)
14
d)
40
10.
The total number of protons and neutrons in an atom is called the...
a)
proton number
b)
atomic number
c)
mass number
d)
weight number
11.
What is the name of the sub-atomic particle that has no charge?
a)
Ion
b)
electron
c)
neutron
d)
proton
12.
What determines the charge of an atom?
a)
the atomic mass of the atom
b)
the number of protons and electrons
c)
the number of neutrons and protons
d)
the number of energy levels (Shells)
13.
The nucleus of an atom contains 12 protons and 13 neutrons. If the atom is electrically neutral, how many electrons does this atom have?
a)
13
b)
12
c)
14
d)
20
14.
What characteristic of an element's atoms ALWAYS determines the element's identity?
a)
the number of neutrons
b)
the number of protons
c)
the atomic mass
d)
the number of valence electrons
15.
How many neutrons does a sodium atom have?
a)
23
b)
11
c)
12
d)
34
16.
How many protons does an Aluminum atom have? (Use a periodic table to help you)
a)
27
b)
13
c)
14
d)
40
17.
The mass number of an element that has18 protons, 18 electrons, and 19 neutrons is _____.
a)
12.5
b)
13
c)
25
d)
37
18.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
19.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
20.
What is the charge does a sodium ion have?
a)
+2
b)
+1
c)
-1
d)
-2
21.
Negative ions form when atoms _________ outer electrons.
a)
lose
b)
gain
c)
share
22.
How many electrons are in the outer shell of Sodium (Na)?
a)
3
b)
1
c)
2
d)
4
23.
Atoms of the same element having different numbers of neutrons
a)
compounds
b)
energy levels
c)
isotopes
d)
elements
24.
How many protons will an atom have it it has 23 electrons and a charge of +3?
a)
23
b)
26
c)
20
d)
3
25.
What does the nucleus of an atom contain?
a)
Electrons & Neutrons
b)
Protons & Neutrons
c)
Neutrinos & Positrons
26.
Neon is which of the following?
a)
Alkali metal
b)
Alkali earth metal
c)
Nobel gas
d)
Halogen
27.
Calcium is most like which of the following?
a)
Barium
b)
Potassium
c)
Cesium
d)
Nitrogen
28.
H is the symbol for which of the following?
a)
Helium
b)
Hydronium
c)
Hydrogen
d)
Oxymoron
29.
The noble gases have how many outer shell electrons?
a)
1
b)
2
c)
7
d)
8
30.
List atoms from least number of protons to most number of protons
a)
Ba, Na, Cl
b)
Na, Cs, Cl
c)
Na, Cl, Cs
d)
Na, Ba, Cl
31.
How many electrons does N need to fill its outer shell?
a)
3
b)
4
c)
1
d)
2
32.
How many electrons does C need to fill its outer shell?
a)
3
b)
4
c)
1
d)
2
33.
Ionic bonds are formed with
a)
metal and nonmetal
b)
metal and metal
c)
nonmetal and nonmetal
d)
only noble gases
34.
The type of bond where electrons are transferred is called
a)
ionic
b)
covalent
c)
microwave
d)
metallic
35.
Mass of an electron is
a)
-1
b)
1/1000
c)
+1
d)
1/2000
36.
Mass of a proton is:
a)
1
b)
2
c)
-1
d)
1/2000
37.
Mass of an neutron is:
a)
1
b)
2
c)
3
d)
1/2000
38.
What element has the following electron configuration?2,8,2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
39.
How many electrons can the first energy level (shell) hold?
a)
1
b)
2
c)
8
d)
0
40.
What is Oxygen's (O) electron configuration?
a)
2,8
b)
2,8,6
c)
2,6
d)
8,6
41.
What is Oxygen's (O) electron configuration?
a)
1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p5
b)
1s2, 2s2, 2p4
c)
1s2, 2s2, 2p6
d)
1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d1
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