WorksheetsIons & Valence Electrons
Total questions: 17
Worksheet time: 10mins
What is the name given to charged particles?
(a)
Protons have a (a) charge.
Electrons have a (b) charge.
If an atom loses electrons it will become ________ charged
Negatively
Positively
Oppositely
Neutrally
outside shell
random shell
shell 1
How many electrons does an atom of fluorine have?
2
9
7
19
How many valence (outermost) electrons does an atom of fluorine have?
2
9
7
19
In order to have a full valence shell, what will fluorine do?
Lose 7 electrons
Gain 1 electron
Lose all electrons
Explode
Fluorine gains one electron. What charge does it have?
+2
-2
+1
-1
Fluorine is now a charged ion. What is its name?
Fluorine
Fluoride
Atom
Chloride
Sodium has one valence electron.
To become an ion, sodium loses one electron.
What charge will a sodium ion have?
Na²⁻
Na⁻
Na⁺
Na²⁺
Oxygen has six valence electrons.
To become an ion, oxygen gains two electrons.
What charge will an oxygen ion have?
O²⁻
O⁻
O⁺
O²⁺
