WorksheetsAtomic Structure/Ions/Isotopes
Total questions: 45
Worksheet time: 31mins
Name
Class
Date
1.
"Everything is composed of atoms" was stated by:
a)
Democritis
b)
Dalton
c)
Moseley
d)
Einstein
2.
John Dalton stated:
a)
elements are made of atoms
b)
atoms of a given element are identical
c)
atoms cannot be subdivided, created, nor destroyed
d)
all of the above
3.
The scientist responsible for "discovering" the nucleus is:
a)
Bohr
b)
Rutherford
c)
Schroedinger
d)
Einstein
4.
The nucleus of an atom can be described as:
a)
spacious and negatively charged
b)
dense and positively charged
c)
spacious and positively charged
d)
dense and negatively charged
5.
Electrons are not factored into atomic mass because:
a)
They are so small their mass is negligible
b)
They're not in the nucleus
c)
They're too big
d)
They move so quickly their mass is zero
6.
How did Rutherford discover the proton?
a)
Cathode tube ray experiment
b)
Gold Foil Experiment
c)
Planetary Model
d)
Plum Pudding Model
7.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
8.
True or False: The majority of an atom is made up of empty space
a)
True
b)
False
9.
The word "atom" comes from a Greek word that means
a)
Invisible
b)
Indivisible
c)
Undivided
10.
Electrons can be found in
a)
The protons
b)
The nucleus
c)
Electron Clouds
11.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
12.
subatomic particles found on the outermost shell & responsible for the atom's reactivity
a)
neutrons
b)
valence electrons
c)
isotopes
d)
ions
13.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
14.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Mass Number
d)
Gluons
15.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
16.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus
d)
Electrons
17.
Atoms of the same element with a different number of neutrons
a)
Ion
b)
Gluons
c)
Isotope
d)
Quarks
18.
A charged atom
a)
Ion
b)
Isotope
c)
Electron Cloud
d)
Quark
19.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
20.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
21.
Arrangement of elements organized by atomic number
a)
Electron Cloud
b)
Periodic Table
c)
Electron Configuration
d)
None of these
22.
Discovered the electron within the atom
a)
Thomson
b)
Chadwick
c)
Schrodinger & Heisenberg
d)
Dalton
23.
Created the Planetary Model of the atom
a)
Bohr
b)
Dalton
c)
Rutherford
d)
Chadwick
24.
Discovered the neutron within the atom
a)
Democritus
b)
Thomson
c)
Rutherford
d)
Chadwick
25.
Believed that atoms of the same element are identical to each other
a)
Bohr
b)
Rutherford
c)
Dalton
d)
Thomson
26.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
27.
How many protons does an aluminium atom have? (Use the image to help you)
a)
27
b)
14
c)
40
d)
13
28.
How many neutrons does a sodium atom have? (Use the image to help you)
a)
23
b)
11
c)
12
d)
34
29.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number
c)
atomic weuight
d)
isotope weight
30.
The mass number of an element that has18 protons, 18 electrons, and 19 neutrons is _____.
a)
12.5
b)
13
c)
25
d)
37
31.
The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.
a)
9
b)
10
c)
19
d)
28
32.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
33.
The number in the upper corner of an element tile (7 for nitrogen) is called _____
a)
the proton number
b)
the atomic number
c)
the electron number
d)
the mass number
34.
If an atom contains exactly three protons, then it's an atom of _____
a)
lithium
b)
gold
c)
nitrogen
d)
carbon
35.
For an atom to be electrically neutral, it must contain the same number of _____
a)
protons and neutrons
b)
neutrons and electrons
c)
protons and electrons
d)
nucleons and electrons
36.
How many Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
4
37.
How many Protons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
38.
The last column in the periodic table are the:
a)
halogens
b)
alkali metals
c)
transition metals
d)
noble gases
39.
Group 2 has ___valence electrons, so it has a ____ charge
a)
1, +1
b)
2, +2
c)
3, +3
d)
2, 6-
40.
Group 17 has ___valence electrons so it has a ___charge
a)
7, 1-
b)
7, 7-
c)
17, 1+
d)
1, 17+
41.
Group 15 has __valence electrons so it has a ___charge
a)
15, 3+
b)
5, 3-
c)
5, 3+
d)
3, 5+
42.
The theory that identified electrons has having a negative charge used the _____________experiment
a)
gold foil
b)
oil drop
c)
cathode ray tube
d)
none of these
43.
sodium reacts violently with water because
a)
it needs to gain 7 electrons
b)
it gives up it's valence electron quickly
c)
it's just ridiculous
d)
it's a noble gas
44.
The Carbon-14 isotope has __protons and ___neutrons
a)
6,6
b)
6,8
c)
12,6
d)
12,14
45.
A cation has a ____charge and an anion has a ___charge
a)
+,-
b)
-,+
c)
0,+
d)
-,0
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