WorksheetsChemistry of Life 2.1
Total questions: 7
Worksheet time: 3mins
Name
Class
Date
1.
What 3 subatomic particles make up atoms?
a)
Isotopes, protons, covalent bonds
b)
quarks, quirks, compounds
c)
protons, neutrons, isotopes
d)
protons, neutrons, electrons
2.
The isotopes of an element all have the same number of:
a)
electrons
b)
neutrons
c)
protons
3.
A chemical ________ is a pure substance made entirely of 1 type of atom.
a)
element
b)
compound
c)
mixture
d)
blend
4.
The nucleus of an atom usually contains:
a)
protons and neutrons
b)
electrons
c)
electrons and protons
d)
isotopes
5.
The main types of chemical bonds are:
a)
ionic and subliminal
b)
covalent and hydrogenated
c)
ionic and covalent
d)
ionic and flourite
6.
A slight attraction between oppositely charged regions of nearby molecules are called:
a)
Van Der Waals forces
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
7.
The electrons involved in chemical bonds are called ___________ electrons.
a)
valence
b)
ionic
c)
Van Der Waals
d)
covalent
100 %
