WorksheetsElements Review
Total questions: 15
Worksheet time: 30mins
An atom of the element Bromine has an atomic number of 35 and a mass number of 80. How many protons does an uncharged Bromine atom have?
45
40
115
35
What is the atomic number of this element?
65
30
95
35
The elements in group 1 of the periodic table are all called alkali metals. All alkali metals have the same
atomic number
atomic mass
number of ions
number of valence electrons
In which period and group would you find this atom?
Period 2, Group 14
Period 4, Group 2
Period 6, Group 55
Period 1, Group 14
How many energy levels does Cesium have?
2
4
6
8
Which of the following could be the chemical symbol representing the element Bromine?
B
Br
Be
Bo
How many valence electrons does Magnesium have?
12
8
2
3
How many electrons does this element have?
56
26
82
30
How many neutrons does this element have?
11
12
33
34
How do you calculate the number of neutrons in an element?
Add the Atomic Number and the Atomic Mass
Subtract the Atomic Number from the Atomic Mass
Multiply the Atomic Mass by the Atomic Number
Divide the Atomic Mass by the Atomic Number
How many energy levels does Neon have?
2
5
7
6
Which of the following could be the chemical symbol representing the element Phosphorus?
P
Ps
Ph
Po
How many valence electrons does Sulfur have?
2
4
6
8
In which period and group would you find this atom?
Period 1, Group 2
Period 3, Group 16
Period 6, Group 8
Period 3, Group 4
The elements in group 18 of the periodic table are all called the noble gases. All noble gases have the same
Atomic Number
Atomic Mass
Number of Ions
Number of Valence Electrons
