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WorksheetsPeriodic Table
Total questions: 40
Worksheet time: 28mins
Which scientist claimed that atoms were 'discrete' units that could not be separated?
Dalton
Thompson
Rutherford
Bohr
Which scientist proved that the atom was mostly empty space with a small positive nucleus?
Dalton
Thompson
Rutherford
Bohr
What scientist thought the atom was a mass of positive charge with electrons scattered throughout?
Dalton
Thompson
Rutherford
Bohr
What scientist thought that electrons existed in 'shells' around the nucleus?
Dalton
Thompson
Rutherford
Bohr
How many valence electrons does Oxygen have?
6
2
8
0
The following Bohr model represents what atom?
Helium
Lithium
Hydrogen
Calcium
What particles give a substance it’s atomic number?
Neutrons
Electrons
Protons
Neutrons and Protons
What particles give a substance it’s mass number?
Neutrons
Electrons
Protons
Neutrons and Protons
How many neutrons does Aluminum 27 have?
13
14
40
27
How many neutrons does Argon 40 have?
22
62
40
18
How many neutrons does Fluorine 19 have?
19
18
9
10
How many neutrons does Chlorine have?
17
18.5
35.5
You don't know
How many electrons does Li+ have?
2
3
4
7
How many electrons does O2- have?
6
4
8
10
Carbon (C) gains a proton. It is now a/an __________.
Isotope
Ion
Nitrogen
Cation
Carbon (C) gains a neutron. It is now a/an __________.
Isotope
Ion
Nitrogen
Cation
Carbon (C) gains an electron. It is now a/an __________.
Isotope
Anion
Nitrogen
Cation
Carbon (C) loses an electron. It is now a/an __________.
Isotope
Anion
Nitrogen
Cation
Left to right on the periodic table, is called a _____ and top to bottom on the periodic table, is called a _____
Family; group
Period; group/family
Family; Period
Group; Family
I am the least reactive metal in my family and I have 1 valence electron. Who am I?
Hydrogen
Lithium
Helium
Francium
I have 3 valence electrons and 2 energy shells. Who am I?
Magnesium
Aluminum
Boron
Oxygen
What is an accurate statement about all elements in period 4 on the periodic table?
They have the same number of protons
They have the same number of valence electrons
They have the same number of energy shells
What element would be the most malleable?
Ne
Si
Mg
What element would be the worst conductor of electricity?
Fe
B
Mg
Which elements have the same number of valence electrons as Sulfur (S)?
O; F
P; Si
Se; Te
As the number of protons increases, the force of attraction _______ and the atoms get _______
increases; larger
decreases; larger
increases; smaller
decreases; smaller
As you do down a family, there are more energy shells, so the force of attraction ___ and the atomic radius is __
increases; larger
decreases; larger
increases; smaller
decreases; smaller
___has the greatest atomic radius because ____
O; It has more energy shells
S; It has more energy shells
O; it has more valence electrons
S; it has more protons
___has the smaller atomic radius because ____
O; It has more energy shells
F; It has more energy shells
O; it has more valence electrons
F; it has more protons
___has the greater ionization energy because ____
O; It has more energy shells
N; It has more energy shells
N; it has more valence electrons
O; it has more protons
Which atom is most likely to gain electrons?
Se
O
S
Which atom will most likely lose an electron?
Li
B
Be
As you move from left to right the periodic table, electronegativity _____ because ______________ so it has ____
Increases; there are more protons; higher force of attraction
Decreases; there are more electrons; higher force of attraction
Decreases; there are more principal energy levels; lower force of attraction
Increases; there are fewer electron shells; lower force of attraction
___ has the highest electronegativity because _____ so it has _____
Br; it has more energy shells; less force of attraction
Br; it has more protons; more force of attraction
Cl; it has fewer energy levels; more force of attraction
Cl; it has fewer electrons; less force of attraction
The following elements are listed with an increasing electronegativity.
C; Si; Ge;
F; O; N
B; Si; As; Te
Pb; Sn; Ge
Which trend do you ignore the noble gases?
Ionization Energy
Electronegativity
Atomic Radius
None
___ has a higher ionization energy because ____
Ne; It has more protons thus a lower force of attraction
F; It has fewer protons thus a higher force of attraction
Ne; It has more protons thus a higher force of attraction
F; it has fewer protons thus a lower force of attraction
When an electron is 'excited'
It goes to a higher energy level
It goes to a lower energy level
It goes into the nucleus
It is released as a photon
When an electron comes back down to its original energy level
It gains electromagnetic radiation
It emits/releases a photon
It emits/releases a proton
It absorbs a photon
An emission spectrum can be used to
Identify an element
See photons
Determine how many protons are in an element
Determine how many electrons are in an element
