Understanding Atomic Structure and Ions
Authored by Rosemary Matthews
Chemistry
10th Grade
Used 5+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic number of an element?
The number of neutrons in the nucleus
The number of protons in the nucleus
The total number of protons and neutrons
The number of electrons in the atom
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the mass number of an atom?
Atomic number + number of electrons
Number of protons + number of electrons
Atomic number + number of neutrons
Number of neutrons + number of electrons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an atom has 15 protons and 16 neutrons, what is its mass number?
15
16
31
29
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a neutral atom, the number of protons is equal to the number of:
Neutrons
Electrons
Ions
Nuclei
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of an ion with 12 protons and 10 electrons?
+2
-2
+1
-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following represents the number of neutrons in an atom with a mass number of 40 and an atomic number of 18?
18
22
40
58
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the symbol for an aluminium atom with 13 protons and 14 neutrons?
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