WorksheetsChemistry -Atoms, Chemical Bonds ( Prof. Waghmare J I )
Total questions: 21
Worksheet time: 13mins
Name
Class
Date
1.
Which sub-atomic particle does not go in nucleus?
a)
proton
b)
neutron
c)
electron
2.
Changing which sub-atomic particle changes the element?
a)
proton
b)
neutron
c)
electron
3.
Changing which subatomic particle DOES NOT change the mass?
a)
proton
b)
neutron
c)
electron
4.
Changing which subatomic particle DOES NOT change the mass?
a)
proton
b)
neutron
c)
electron
5.
Changing which subatomic particle changes the mass but not the charge?
a)
proton
b)
neutron
c)
electron
6.
Changing which subatomic particle changes the mass AND the charge?
a)
proton
b)
neutron
c)
electron
7.
Where can you find a proton in an atom?
a)
nucleus
b)
orbital
c)
cloud
d)
rings
8.
Two isotopes of Beryllium would not have the same number of which subatomic particle?
a)
nucleus
b)
electrons
c)
neutrons
d)
protons
9.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
10.
Bonds that form between two metals are called ______________ bonds.
a)
ionic
b)
covalent
c)
metallic
d)
pervasive
11.
What type of bond forms when 2 or more electrons are SHARED?
a)
Covalent bond
b)
Incomplete bond
c)
Ionic bond
d)
Metallic bond
12.
What type of bond forms between two or more atoms that are charged (+/-)?
a)
Covalent bond
b)
Incomplete bond
c)
Ionic bond
d)
Metallic bond
13.
Electrons that are free to move in a metal are referred to as...
a)
localized electrons
b)
delocalized electrons
c)
electrostatic electrons
d)
cations
14.
Metallic bonds include a "sea" of free moving _______.
a)
electrons
b)
atoms
c)
molecules
d)
protons
15.
Covalent bonds tend to happen between two
a)
metals
b)
nonmetals
c)
metal and nonmetal
16.
Which elements are found on the left under the transition line (in green)?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
All types
17.
Which elements are found on the right side above the transition line (in yellow)?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
All types
18.
2.5 is the difference in electronegativity between lithium and oxygen. You can classify this compound as
a)
Polar-Covalent
b)
Nonpolar Covalent
c)
Ionic
19.
What is a cation's charge?
a)
positive
b)
negative
c)
neutral
d)
depends on the element
20.
What is an anion's charge?
a)
positive
b)
negative
c)
neutral
d)
depends on the element's charge
21.
Which of the following is an example of an IONIC COMPOUND?
a)
NaCl
b)
H2O
c)
CO2
d)
NO
100 %
