WorksheetsChemistry Essentials: Chemical Bonds
Total questions: 12
Worksheet time: 6mins
Covalent bonds involve involve the _________________ of electrons, whereas ionic bonds involve the _________________ of electrons
(a)
In general, how many electrons does carbon have?
2
4
6
12
How many valence electrons does carbon have?
2
4
6
12
When an atom is "stable", that means it's...
Unlikely to get involved in chemical reactions
Unlikely to fall over
Unlikely to get lost
Unlikely to ride horses
Oxygen has 6 valence electrons. How many more electrons does it need to fulfill the octet rule
1
2
3
4
Single bonds occur when atoms share _______ pair of electrons.
one
two
three
four
Double bonds occur when atoms share _______ pair of electrons.
one
two
three
four
Carbon has 4 valence electrons. How many more electrons does it need to fulfill the octet rule
1
2
3
4
Based on the image: How many electrons do you see in Sodium's outer (valence) shell?
1
8
2
4
Most chemical reactions occur because:
Atoms want to get 8 protons
Atoms want to get 8 neutrons
Atoms want to get 8 valence electrons
Atoms want to get eight nuclei
Sodium has 1 valence electron. How many more electrons does it need to fulfill the octet rule?
1
3
5
7
In general, sodium has _______ electrons. Of those electrons, _______ are valence electron(s), as it has one electron in its outermost orbital.
11,1
1,11
23,11
11,23
