WorksheetsSJB: Atomic structure
Total questions: 14
Worksheet time: 3mins
What is the charge of a proton?
Positive
+1
Negative
-1
Neutral
0
Negligible
1/2000
What is the charge of an electron?
Positive
+1
Negative
-1
Neutral
0
Negligible
1/2000
What is the charge of a neutron?
Positive
+1
Negative
-1
Neutral
0
Negligible
1/2000
What is the mass of a proton?
1
0
1/2000
-1
What is the mass of a neutron?
1
0
1/2000
-1
What is the mass of a electron?
1
0
1/2000
-1
Atoms have no overall ………………….. because the positive protons cancel out the negative electrons.
(a)
Which of the following is not true about lithium?
Each Lithium atom has 3 protons
Each Lithium atom has 3 electrons
The average mass of lithium is 7
Lithium has an atomic number of 7
Which of the following is not true about chlorine?
Each Chlorine atom has 17 protons
Each Chlorine atom has 17 electrons
The average mass of chlorine tells us it has no isotopes
The average mass of chlorine tells us it has no isotopes
Sodium has 11 protons in its nucleus. Which of the following is true about sodium?
It’s electron configuration is 2.8.8.2
It’s a non-metal
It is found in group 1
It is found in period 4
How many protons does potassium have?
19
39
2.8.8.2
20
Atoms are mostly made of empty space
True
False
The red box shows a ……………. On the periodic table.
Group
Period
Column
Row
The red circle shows a ……………. On the periodic table.
Group
Period
Column
Row
