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WorksheetsUnit 6 Summative- Part 1
Total questions: 35
Worksheet time: 1hrs 8mins
TRUE OR FALSE Lithium and Beryllium have the same number of valence electron.
TRUE
FALSE
USE THE PERIODIC TABLE
How many valence electrons does sodium have?
1
2
3
4
Chlorine ( Cl) has _________ valence electrons.
3
5
7
8
All of the elements has 4 valence electrons EXCEPT______
Carbon
Silicon
Germanium
Selenium
USE THE PERIODIC TABLE
How many valence electrons does Phosphorus have?
31
5
15
4
USE THE PERIODIC TABLE
How many valence electrons does Phosphorus have?
31
5
15
4
How many electrons would a Nitrogen ion gain/lose?
lose 5
gain 5
lose 3
gain 3
How many electrons would a Calcium ion gain/lose?
lose 1
gain 1
lose 2
gain 2
If an atom loses electrons, the charge will be positive.
true
false
Select the elements that has 8 valence electrons.
Ne
Br
Kr
Xe
How many electrons would a Nitrogen ion gain/lose? If it has 5 valence electrons.
lose 5
gain 5
lose 3
gain 3
What is the ion formed from Sulfur? If it has 6 valence electrons.
S+2
S-2
S+6
S-6
How many electrons would a Calcium ion gain/lose? If it has 2 valence electrons.
lose 1
gain 1
lose 2
gain 2
A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?
Br-1
Br+1
Br+7
Br-7
An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.
+2
-2
+3
0
Ca has 2 valence electron. It will have a charge of _______
+1
+2
-1
-2
Which particles change the charge in atoms when ions are formed?
Protons
Electrons
Neutrons
F has 7 valence electron. It will have a charge of _______
-2
-1
+1
+2
