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WorksheetsAtomic Structure Test
Total questions: 38
Worksheet time: 19mins
Which subatomic particle is positively charged?
Proton
Neutron
Electron
Nucleus
Which subatomic particle is negatively charged?
Proton
Neutron
Electron
Nucleus
Which subatomic particle is neutral?
Proton
Neutron
Electron
Nucleus
Which of these determine the mass number
Proton & Electron
Protons only
Electrons only
Protons & Neutrons
Which of these is the same as the atomic number on the periodic table?
Electrons
Protons
Neutrons
None
An atom has 14 protons, 14 neutrons, & 18 electrons what is the mass number?
28
14
32
20
An atom has 10 protons, 14 neutrons, & 10 electrons what is the mass number?
24
20
18
10
The atomic number is 10 and the mass number is 35. What is the number of neutrons?
25
20
28
10
What changes in an ion?
Protons only
Electrons only
Neutrons only
All of them
What changes in an isotope?
Protons only
Electrons only
Neutrons only
All of them
An atom loses 3 electrons what is its charge?
+3
-3
-1
+1
An atom gains 1 electron what is its charge?
+3
-3
-1
+1
6 protons, 7 neutrons, & 6 electrons. Which element is this?
Nitrogen
Carbon
Magnesium
Calcium
Ca2+ has how many protons and electrons?
20 protons & 18 electrons
18 protons & 20 electrons
20 protons & 22 electrons
Al1+ has how many protons and electrons?
13 protons & 12 electrons
12 protons & 13 electrons
13 protons & 14 electrons
In a neutral atom....
the protons always equal the electrons
the protons always equal the neutrons
none of the subatomic particles are the same
they are all the same
What is the mass number with 25 protons and 30 neutrons?
55
25
30
45
What does the group number on the periodic table tell you?
The number of protons
The number of neutrons
The number of valence electrons
The mass number
If an ion has a -1 charge what type of ion is this?
Anion
Cation
If an ion has a +2 charge what type of ion is this?
Anion
Cation
What is the number of protons, neutrons, & electrons?
17 protons, 20 neutrons, 17 electrons
37 protons, 17 neutrons, 37 electrons
12 protons, 14 neutrons, 12 electrons
Which of the following is a nonmetal?
Oxygen
Aluminum
Lead
Lithium
Which of the following is a metal?
Oxygen
Hydrogen
Lead
Arsenic
Which of the following is a metalloid?
Oxygen
Hydrogen
Boron
Arsenic
Name the element in group 2 period 4
Ca
Na
Ba
Mg
An atom has 25 protons and 30 neutrons. How many electrons are needed to make the atom neutral?
0
25
30
35
What is the atomic number?
35
18
17
52
How many neutrons does Chlorine have?
18
17
35
52
What is the atomic mass of Neon?
10
20
30
What is the atomic mass of Arsenic?
33
107
75
What are valence electrons?
Any of an atom's electrons
Electrons located on the first energy level
Electrons not attached to any atom
electrons located on the outer energy level
How many electrons can fit on the first shell?
2
8
10
18
How many electrons can fit on the second shell?
2
8
10
18
