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WorksheetsAtoms, Lewis Dot and Bohr Diagrams
Total questions: 28
Worksheet time: 18mins
Label the atom!
Electron cloud
Proton
Neutron
Electron
Nucleus
Which subatomic particle has a positive charge and a mass of 1AMU?
Proton
Neutron
Electron
Nucleus
Which subatomic particle has a neutral charge and a mass of 1AMU?
Proton
Neutron
Electron
Nucleus
Which subatomic particle has a negative charge and a mass of 0 or too small to count?
Proton
Neutron
Electron
Nucleus
This part of the atom holds most/all of the mass of the atom.
Proton
Neutron
Electron
Nucleus
What does it mean when an atom is neutral?
It has the same number of neutrons and electrons
It has the same number of protons and electrons
It has the same number of protons and neutrons
It has a different number of neutrons than on the Periodic Table
If an atom of Carbon has 6 protons and 6 electrons what does that tell us about it?
We can subtract those to get zero neutrons
The mass of this atom is 12
This atom is neutral, or has a charge of zero
The charge is 6 since protons are positive
A neutral atom of Krypton has....
36 protons and 36 electrons
36 protons and 36 neutrons
36 electrons and 36 neutrons
0 electrons and 0 protons
How many valence electrons does Sodium (Na) have?
1
2
3
4
How many valence electrons does Barium (Ba) have?
1
2
3
4
How many valence electrons does Aluminum (Al) have?
1
2
3
4
How many valence electrons does Helium (He) have?
1
2
3
4
How many valence electrons does Neon (Ne) have?
1
2
3
8
How many valence electrons does Chlorine (Cl) have?
5
6
7
8
Mass number in an atom is made up of two subatomic particles...
protons and electrons
protons and neutrons
neutrons and electrons
protons only
Label the Chlorine atom
Atomic Number
Atomic Mass
Label the Chlorine atom
Total number of electrons
Protons plus neutrons
Which element does this represent?
Bromine
Chlorine
Titanium
Krypton
Which element COULD this be?
Gallium (Ga)
Scandium (Sc)
Carbon (C)
Lithium (Li)
Which TWO numbers would you need to write in the nucleus for this to be a correct Bohr diagram of Cesium (Cs).
P 55 N 133
P 55 N 132
P 55 N 78
P 55 E 55
Label the following isotope notation of Sodium (Na). Remember mass is always the larger number.
Atomic Number
Mass Number
how many Neutrons does THIS atom of Oxygen have? Remember MASS is always the larger number.
17
9
8
25
Which one of the Lewis dot structures would represent an element in group 15
A
B
C
D
Which one of the Lewis dot structures would represent an element in group 17?
A
B
C
D
Which group/family represents column A?
Alkali Metals
Halogens
Nobel Gases
Alkali Earth Metals
Which group/family represents column B?
Alkali Metals
Halogens
Nobel Gases
Alkali Earth Metals
Which group/family represents column H?
Alkali Metals
Halogens
Nobel Gases
Alkali Earth Metals
Which group/family represents column I?
Alkali Metals
Halogens
Nobel Gases
Alkali Earth Metals
