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WorksheetsMatter
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Smallest particle of an element
a)
Atom
b)
Element
c)
Molecule
d)
Compound
2.
He coined the term atoms
a)
Democritus
b)
Niels Bohr
c)
John Dalton
d)
J.J. Thompson
3.
Atomos is a Greek word that means
a)
Infinite
b)
Indescribable
c)
Indivisible
d)
Independent
4.
Found in the nucleus and is positively charged
a)
Neutron
b)
Proton
c)
Electron
d)
Protein
5.
Found in the nucleus and does not have any charge
a)
Proton
b)
Neutron
c)
Electron
d)
Neuter
6.
Found outside the nucleus and has a negative charge
a)
Proton
b)
Electron
c)
Neutron
7.
Presented scientific evidence that matter is made up of tiny particles
a)
J.J. Thomson
b)
John Dalton
c)
Niels Bohr
d)
Ernest Rutherford
8.
Proposed that the atom is a small positively charged sphere with electrons spread throughout it.
a)
J.J. Thomson
b)
John Dalton
c)
Niels Bohr
d)
Ernest Rutherford
9.
His model had small positively charged nucleus at its center with electrons moving around the nucleus.
a)
J.J. Thomson
b)
John Dalton
c)
Niels Bohr
d)
Ernest Rutherford
10.
He proposed that electrons move around the nucleus in fixed orbits.
a)
J.J. Thomson
b)
John Dalton
c)
Niels Bohr
d)
Ernest Rutherford
11.
Total number of protons and neutrons in an atom
a)
Atomic number
b)
Atomic Mass
12.
Shows the number of protons in an atom
a)
Atomic number
b)
Atominc Mass
13.
Made up of two or more atoms chemically combined
a)
Compound
b)
Element
14.
Fill in the blanks:
Element: Sodium
Symbol: _____
Atomic#-Mass#-Protons-Electrons
Element: Sodium
Symbol: _____
Atomic#-Mass#-Protons-Electrons
a)
Na
b)
So
c)
S
d)
Sm
15.
Fill in the blanks:
Element: Sodium
Atomic#: 11
Mass#: 23
Protons:____
Element: Sodium
Atomic#: 11
Mass#: 23
Protons:____
a)
12
b)
23
c)
11
d)
22
16.
Fill in the blanks:
Element: Sodium
Atomic#: 11
Mass#: 23
Electrons:____
Element: Sodium
Atomic#: 11
Mass#: 23
Electrons:____
a)
12
b)
23
c)
11
d)
22
17.
Fill in the blanks:
Element: Sodium
Atomic#: 11
Mass#: 23
Neutrons:____
Element: Sodium
Atomic#: 11
Mass#: 23
Neutrons:____
a)
12
b)
23
c)
11
d)
22
18.
Fill in the blanks:
Element: Copper
Atomic#: ___
Mass#: 63
Protons: 29
Element: Copper
Atomic#: ___
Mass#: 63
Protons: 29
a)
63
b)
29
c)
34
d)
22
19.
Fill in the blanks:
Element: Copper
Atomic#: 29
Mass#: 63
Neutrons: ___
Element: Copper
Atomic#: 29
Mass#: 63
Neutrons: ___
a)
63
b)
29
c)
34
d)
22
20.
Which of the following is represented by the diagram below?
a)
A. O2, NaCl, H2O
b)
B. O2, O3, HCl
c)
C. HCl, Cl2, NaCl
d)
D. H, O2, O3
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