WorksheetsAtomic Structure Test Review with e config
Total questions: 55
Worksheet time: 55mins
The basic building block of matter
atom
proton
molecule
electron
The approximate mass of a proton is ______ a.m.u
0
1
2
6
The negatively charged subatomic particle
Proton
Neutron
Electron
Which subatomic particles are found in the nucleus of an atom?
Protons and electrons
Protons and neutrons
Neutrons and electrons
Protons only
The number of protons for an atom is determined from what on the periodic table?
Atomic number
Atomic mass number
Mass number
Mass number - atomic number
How many protons does a magnesium atom have?
6
12
24
25
How many electrons does a neutral atom of barium (Ba)
54
56
81
137
What is the atomic mass of nickel
28
58
58.693
59
A charged atom
element
Ion
Isotope
Valence
How many electrons does a 40Ca2+ atom have?
2
18
20
40
How many electrons does a 31P3- atom have?
3
12
15
18
The number of protons plus neutrons for an isotope is called the ____________
atomic number
atomic mass
mass number
valence number
What is mass number from the following isotopic notation? 16O2-
8
10
12
16
How many neutrons are in the element with the following isotopic notation? 88Sr2+
36
38
50
88
An atom has 13 protons, 14 neutrons and 10 electrons. What element is this?
neon
aluminum
silicon
cobalt
An atom has 13 protons, 14 neutrons and 10 electrons.
What is the mass number?
13
14
23
27
An atom has 13 protons, 14 neutrons and 10 electrons.
What is the charge of this ion?
no charge
1-
3-
3+
Which is the correct atomic model developed by JJ Thomson?
Who developed this model of the atom?
Dalton
Thomson
Rutherford
Bohr
Which atomic model represents the Quantum Mechanical model?
In a chemical reaction, the total mass of the reactants must equal the total mass of the products
Law of definite composition
Law of conservation of mass
Law of multiple proportions
Law of atomic theory
Which subatomic particle was discovered first using cathode ray tubes?
proton
neutron
electron
quarks
He calculated that electrons can only reside in certain energy levels around the nucleus
Dalton
Thomson
Rutherford
Bohr
This diagram shows the set-up of the gold foil experiment that was carried out by ______________
Dalton
Thomson
Rutherford
Bohr
From the diagram, which alpha particle pathway was the most common in the gold foil experiment?
A
B
C
Which is the correct Bohr model for a 24Mg2+ ?
a
b
c
d
the electrons found in the highest energy level of asn atom are called ____________ electrons
valence
orbital
nuclear
ions
An orbital can best be described as....
the outermost electrons in an atom
small dense center of the atom
a region with a high probability of having electrons
a line on an emission spectra
What type of spectra are shown?
continuous
absorption
emission (bright-line)
prism
bright-line spectra are observed in energized gases because...
electrons jump to higher energy levels and when they return to their ground state emit specific wavelengths
the nucleus is unstable causing decay, which releases energy
the random position and movement of electrons releases wavelengths of light
valence electrons are lost causing a change in energy
Based on the emission spectra, what gases are contained in the mixture?
A and B
B and C
A and C
A and D
B and D
Which is the correct electron configuration for cobalt?
1s2 2s2 2p6 3s2 3p6 4s2 4d7
1s2 2s2 2p6 3s2 3p6 4s2 3d7
1s2 2s2 2p6 3s2 3d7
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2
Which is the correct noble gas configuration for selenium?
[Ne] 4s2 3d10 4p4
[Ar] 4s2 3d10 4p4
[Ar] 4s2 4p4
[Kr] 4p4
What element has the following configuration?
1s2 2s2 2p6 3s2 3p6 4s1
Na
K
Ca
Rb
What element has the following configuration?
[Rn] 7s2 6d1 5f3
Pr
Nd
Pa
U
the vertical columns on the periodic table are called periods
true
false
JJ Thomson discovered the nucleus
true
false
An element's identity is determined by the number of protons
true
false
Electrons are ~2000x less massive than protons
true
false
the last naturally occurring element is...
Ra
Og
U
Lr
This is an orbital diagram for calcium
true
false
Aristotle coined the term "atom"
true
false
The flaw in John Dalton's model of the atom is he thought atoms could not be subdivided
true
false
the shape of a p-orbital is a cloverleaf shape
true
false
Hund's rule states that 1 electron must fill each sub-orbital (sub-shell) before a 2nd electron is added
true
false
An isotope atoms with equal numbers of protons but different numbers of electrons
true
false
protons are composed of elementary particles called quarks
true
false
the current model of the atom is commonly called the plum pudding model
true
false
the atomic mass printed on the periodic table is average mass of all the isotopes for that element
true
false
the strong nuclear force "holds" protons together in the nucleus
true
false
a Na+ ion has gained an extra proton
true
false
elements 93-118 all have one naturally occurring isotope
true
false
The Greek translation of the word "atom" means indivisible
true
false
From the provided data, calculate the average atomic mass for Element X with its 2 isotopes (X-10 and X-11)
10.81 amu
21.02 amu
22.74 amu
108.1 amu
An atom that has lost 2 electrons would have a charge of 2-
true
false
