WorksheetsPeriodic Trends Practice
Total questions: 20
Worksheet time: 42mins
As you move down a group, atomic radius increases because ____.
you add more and more neutrons
you add more and more protons
you add more and more shells (energy levels)
you add more atomic mass
The atom with the largest atomic radius in Group 18 is ___.
Ar
He
Kr
Rn
The atom with the largest atomic radius in Period 4 (row 4) is ____.
K
Kr
Fe
Fe
Electronegativity __________ from left to right across a period and __________ from top to bottom down a group.
decreases, increases
increases, increases
increases, decreases
stays the same, increases
Which of the following will have a larger atomic radius than zinc?
Gallium
Aluminum
Magnesium
Strontium
Ionization energy is defined as ____.
the energy required to add an electron to a specific atom
how much energy it takes to remove an electron from an atom
the energy required to shield the outer electrons from the nucleus
a measure of the ability of an atom to attract electrons
Francium (Fr) has the lowest ionization energy in Group 1 because ____.
it has the smallest number of valence electrons
it has the greatest atomic mass
it has the greatest number of protons, so it attracts its electrons the strongest
its 1 valence electron is very far from the nucleus, so little energy is needed to remove it
Atomic radius is defined as ____.
the relative size of the atom's nucleus
the relative size of the atom's electron cloud
the energy required to shield the outer electrons from the nucleus
a measure of the ability of an atom to attract electrons
Which of the following will have a lower ionization energy than scandium (Sc)?
Helium (He)
Titanium (Ti)
Calcium (Ca)
Magnesium (Mg)
Which element has the HIGHEST first ionization energy?
Ne
Ge
W
Ra
List the following elements in order of INCREASING atomic radius:
Cs, S, Co
They are all about the same
Co, Cs, S
S, Co, Cs
Cs, Co, S
Put the following chemical species in order of INCREASING radius:
F-1, Kr, K+1, N-3
K+1, Kr, F-1, N-3
N-3, F-1, Kr, K+1
Kr, F-1, N-3, K+1
They are all about the same size
An atom of ____ could be represented by the Lewis dot diagram shown above.
Mg
Cl
C
O
How many valence electrons should lithium have in its Lewis dot diagram?
1
2
3
4
Which of the following is a correct Lewis dot diagram for magnesium?
How many valence electrons are indicated in the Lewis dot diagram shown above?
2
4
6
7
