Font size
WorksheetsElements and Chemical Bonds
Total questions: 27
Worksheet time: 55mins
Horizontal (SIDE TO SIDE) rows on the periodic table are
groups
periods
How many valence electrons does Boron have?
2
8
3
13
Is this atom stable or unstable?
stable
unstable
When a covalent bond forms _______________ are shared.
protons
nutrons
valence electrons
quarks
Compounds have _________________ properties, compared to the elements that form them.
similar
different
How many valence electrons does Oxygen (O) have?
6
8
15
16
An atom of nitrogen (N) has _______ open bonding sites.
5
4
3
8
The weakest covalent bond is a _____________.
single bond
double bond
triple bond
polar bond
Polar substances like water are good at dissolving ___________.
other polar substances
non polar substances
all substances
no substances
A triple covalent bond forms when two atoms share ____________.
2 pair of electrons
4 total electrons
3 pair of electrons
3 total electrons
Why do all bonds form?
so the number of protons equals the number of electrons
so an atom can become unstable
to fill the outermost energy level
(hydrochloric acid) made up of?
(Sulfuric Acid) made up of?
Covalent compounds are:
Select all options that form a true statement.
molecules
a specific ratio of cations and anions held together by electrostatic forces
sharing at least one pair of valence electrons
polar (sharing electrons unequally) or non-polar (sharing electrons equally)
electron thieves, they take electrons from other atoms
