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WorksheetsPatterns on the Periodic Table
Total questions: 20
Worksheet time: 20mins
How many valence electrons does this atom have?
1
8
6
2
How many valence electrons does this atom have?
2
8
5
6
How many valence electrons does this atom have?
2
8
4
1
How many valence electrons does this atom have?
6
8
10
18
What happens to valence electrons when you go from from the left side of the periodic table to the right?
They go up by 2
They don't change
They do down by 1
They go up by 1
What changes with the electron orbitals as you go down the periodic table?
They don't change
They go up by 1
They go down by 1
They go up by 2
The picture is sodium (Na) exploding in water. Why does it do this in water?
Na has 8 valence electrons so it is reactive
Na has a really high mass so it is explosive
Sodium has 1 valence electron so it is reactive
Neon signs don't explode when you turn them on because Neon gas has....
1 valence electron and it is reactive
A really low mass so it is not reactive
8 valence electrons so it is stable (and not reactive)
During bonding, what would Nitrogen do in order to have 8 valence electrons?
It would gain 2
It would gain 3
It would lose 5
It would lose 7
During bonding, what would Boron do in order to have a complete orbital of electrons?
It would gain 5 electrons
It would lose 3 electrons
It would gain 8 electrons
During bonding, what would oxygen do in order to have a full outer orbital?
It would lose 6 electrons
It would gain 2 electrons
It would lose 8 electrons
All atoms like to have this many electrons in their outermost orbital.
2
4
6
8
As you go from left to right across the periodic table, how does the ATOMIC NUMBER change?
It doesn't change
It goes up by one
It goes down by one
It goes up by 2
Every atom has the same number of protons as it has.....
Electrons
Neutrons
If I have a chunk of potassium (k), every atom in that chunk is.....
Different
Colored the same
Has the same number of protons, neutrons and electrons
To find the number of neutrons in an atom you....
Take the atomic number minus the atomic mass
Take the atomic mass minus the atomic number
Take the number of electrons minus the number of protons
In bonding, the most important thing to know about an atom is its....
Number of protons
Total number of electrons
Number of valence electrons
Number of neutrons
The lightest part of the atom is the.....
Neutron
Proton
Electron
When 2 atoms of different elements bond, they make a....
New Element
A compound
A new electron
A second nucleus
A compound is_____________________ the 2 elements that made it.
the same as
different than
smaller than
a different color than
