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WorksheetsThe Electron Mini Review
Total questions: 27
Worksheet time: 15mins
When aluminum (Al) forms an ion, it _____ electrons and has a _____ charge.
gains, +3
loses, +3
gains, -3
loses, -3
What charge will all the alkaline earth metals have when they form ions?
+1
+2
0
-2
What group of elements never form ions?
Transition metals
Noble gases
Halogens
Group 3A
How many valence electrons does gallium (Ga) have?
1
2
3
4
An oxygen atom will _____ electrons to have the same number of valence electrons as _____.
gain, neon
gain, helium
lose, neon
lose, argon
What chemical property do all the halogens share?
A +1 charge as ions
A -1 charge as ions
They are metals
They are gases
Which element is this: 1s22s22p63s23p3?
Al
P
As
Kr
An unknown element is a nonmetal and has a valence electron configuration of ns2np4. How many valence electrons does this element have?
1
3
6
8
Elements in the same group of the periodic table have the same:
number of valence electrons.
physical properties.
number of electrons.
electron configuration.
In an electron configuration, what does the sum of the superscripts equal?
The total number of electrons in the atom is equal to the sum of the superscripts.
The total number of protons in the atom is equal to the sum of the superscripts.
The total number of valence electrons in the atom is equal to the sum of the superscripts.
The total electrical charge of the atom is equal to the sum of the superscripts.
Atoms of metals tend to:
lose electrons and form negative Ions.
lose electrons and form positive ions.
gain electrons and form negative ions.
gain electrons and form positive ions.
How many of a magnesium atom’s electrons are valence electrons?
2
4
6
12
Oxygen and sulfur are in the same group (16) in the periodic table. This means that, in general, oxygen and sulfur:
undergo similar reactions with other elements.
have the same number of protons.
have a tendency to decay into simpler elements.
have idential electron configuations.
How is light produced?
Electrons release energy as they are excited to a higher state.
Electrons absorb energy as they return to ground state.
Electrons release energy as they return to ground state.
Electrons absorb energy as they are excited to a higher state.
How many electrons can the “p” sublevel hold total?
3
5
6
7
What electron configuration matches an oxygen atom?
1s22s22p63s2, 3p64s23d104p5
1s22s22p6
1s22s22p4
1s22s22p63s23p64s23d1
This orbital diagram represents:
Carbon
Nitrogen
Boron
Oxygen
What is incorrect about this orbital diagram?
Both arrows in the 2p box should be pointing up.
In the 2p boxes there should only be 1 orbital in the first 2p box and one in the 2nd 2p box
There is nothing incorrect with this diagram
All the arrows should be pointing up.
Which is associated with more energy?
2p
3p
2s
1s
How many electrons can the d sublevel hold?
14
2
10
6
This is a correct dot diagram for oxygen (O)
True
False
What charge will a Beryllium ion have?
+
2-
2+
-
Why are ions charged particles?
The number of electrons does not equal the number of protons.
The number of neutrons does not equal the number of electrons.
The number of protons does not equal the number of neutrons.
The electric charges of the electrons and protons cancel each other out.
Long wavelength has _____ frequency and _____ energy.
High, High
Low, Low
High, Low
Low, High
Which color has the shortest wavelength?
Red
Green
Orange
Violet
Which color has the highest energy?
Green
Yellow
Orange
Red
Which wave in the diagram has the greatest wavelength?
1
2
3
4
