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WorksheetsAtoms, Molecules, & the Periodic Table
Total questions: 40
Worksheet time: 33mins
Name
Class
Date
1.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
2.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
3.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
4.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
5.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
6.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
7.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
8.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
9.
How many Oxygen are in H2O?
a)
1
b)
2
c)
0
d)
4
10.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
11.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
12.
How many atoms of Hydrogen are in this compound
a)
1
b)
2
c)
3
d)
4
13.
In this compound structure of alcohol, how many Hydrogen atoms are there?
a)
2
b)
4
c)
6
d)
8
14.
Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)
three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
15.
The number of Na's in Na₂CO₃
a)
1
b)
2
c)
3
d)
6
16.
How many Elements are in the compound C2H8O ?
a)
2
b)
1
c)
3
d)
0
17.
How many total atoms are in the compound C2H8O ?
a)
11
b)
2
c)
8
d)
1
18.
How many Aluminum are in Al2O3?
a)
3
b)
2
c)
5
19.
What are the states of matter?
a)
Solid, Liquid, Water
b)
Solid, Liquid, Gas
c)
Melting, Freezing, Condensing, Evaporating
d)
Water and Liquid
20.
What is a molecule?
a)
Two or more atoms bonded together
b)
One element
c)
One atom
d)
Solid, Liquid, Gas
21.
When the molecules are moving very fast, the substance is...
a)
Hot
b)
Cold
c)
Room Temperature
d)
Wet
22.
What is the smallest particle?
a)
Element
b)
Molecule
c)
Atom
d)
Plasma
23.
Which part of an atom is POSITIVELY charged?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
24.
What part of an atom is NEGATIVELY charged?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
25.
Which part of an atom has no charge?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
26.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
27.
a)
Periods
b)
Groups
28.
a)
Periods
b)
Groups
29.
a)
energy levels
b)
valence electrons
c)
protons
d)
neutrons
30.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
31.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
32.
What is the chemical symbol for Lithium?
a)
H
b)
He
c)
Li
d)
N
33.
What is the chemical symbol for the element hydrogen
a)
H
b)
He
c)
h
d)
he
34.
What is the chemical symbol for the element Silicon
a)
S
b)
Si
c)
si
d)
Sl
35.
What is the chemical symbol for the element Carbon
a)
ca
b)
co2
c)
C
d)
Cd
36.
What is the chemical symbol for the element copper?
a)
co
b)
c
c)
Cu
d)
cu
37.
What is the chemical symbol for the element Aluminum
a)
A
b)
AL
c)
Al
d)
al
38.
What is the chemical symbol for the element Nitrogen
a)
Ni
b)
N
c)
No
d)
Nb
39.
What is the chemical symbol for the element oxygen
a)
O
b)
Oxy
c)
ox
d)
Oy
40.
What is the chemical symbol for the element Silver
a)
S
b)
Si
c)
Au
d)
Ag
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