What does the atomic number of an element tell you?
2.1 Atomic Structure and Periodic Table

Quiz
•
Science
•
8th Grade
•
Hard
Jake Villagonzalo
Used 1+ times
FREE Resource
38 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The number of protons in the nucleus of an atom of that element
The number of neutrons in the nucleus of an atom of that element
The number of electrons orbiting the nucleus of an atom of that element
The mass number of an atom of that element
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the relationship between the atomic number and the number of protons in an atom?
The atomic number is always less than the number of protons.
The atomic number is always greater than the number of protons.
The atomic number is always equal to the number of protons.
The atomic number and number of protons are completely unrelated.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following statements about the mass number of an atom is true?
The mass number tells you the number of protons in the nucleus.
The mass number tells you the number of electrons orbiting the nucleus.
The mass number tells you the total number of protons and neutrons in the nucleus.
The mass number is the same as the atomic number for any given element.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An atom of lithium has an atomic number of 3 and a mass number of 7. How many neutrons does a lithium atom have?
3 neutrons
4 neutrons
7 neutrons
10 neutrons
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following statements about the charge of subatomic particles is true?
Protons have a negative charge, electrons have a positive charge, and neutrons have no charge.
Protons have a positive charge, electrons have a negative charge, and neutrons have no charge.
Protons and electrons both have a positive charge, while neutrons have a negative charge.
Protons and neutrons both have a positive charge, while electrons have a negative charge.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the key difference between the atomic mass of hydrogen (1 g/mol) and the atomic mass of carbon (12 g/mol)?
Hydrogen atoms have more mass than carbon atoms.
Carbon atoms have more mass than hydrogen atoms.
Hydrogen and carbon atoms have exactly the same mass.
Mass is not related to the atomic number or mass number.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Suppose you have two pieces of metal, one of sodium and one of iron, each measuring 1 cm³ in volume. Which of the following is true about their masses?
The sodium and iron pieces will have exactly the same mass.
The sodium piece will have a greater mass than the iron piece.
The iron piece will have a greater mass than the sodium piece.
There is not enough information provided to determine the relative masses.
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