Worksheetselectron cloud
Total questions: 20
Worksheet time: 28mins
How many protons does sulfur have?
32
16
48
12
How many electrons does sulfur have
16
32
48
12
How many neutrons does a Copper-64 atom have?
63
29
92
35
Explain the structure of the atom
There is a tiny nucleus and a large electron cloud filled with empty space
There is a tiny nucleus and a tiny electron cloud
The nucleus is bigger than the electron cloud
The electron cloud is made of protons and electrons, the nucleus has neutrons
Why is an object, like a table, solid?
The atoms are touching
The nuclei are so close
There are so many atoms
The electrons are moving so fast they are everywhere at once.
What are electron levels
pathways that the electrons travel
places the electrons stay at
safe amounts of energy the electrons can have
amount of electrons an atom
How many electron energy levels are there
1
3
5
7
9
which level fills first
1
3
5
7
9
how many filled levels does Mg have
1
2
3
4
5
How many filled levels does Gold (Au) have
2
4
6
8
How many outer electrons (valence) does Iodine have?
1
2
3
5
7
How many outer electrons -valence- does Chromium have
1
2
3
4
5
1s2 2s2 2p6 3s2
1s22s22p63s23p64s23d10
What is this element?
1s22s22p63s23p64s23d104p6
Argon
Krypton
Selenium
Bromide
What are valence electrons?
The innermost electrons
The outermost electrons
How many dots are in the electron dot notation of V
1
2
4
5
What element has a 1/2 full 3p sublevel?
N
Al
Ar
P
