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Atoms and Elements Quiz

The document is a practice quiz on atoms, elements, and the periodic table, consisting of multiple-choice and short answer questions. Key concepts covered include the definition of an atom, atomic number, atomic mass, and the relationship between protons and electrons. The quiz assesses understanding of fundamental atomic structure and properties.

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52 views3 pages

Atoms and Elements Quiz

The document is a practice quiz on atoms, elements, and the periodic table, consisting of multiple-choice and short answer questions. Key concepts covered include the definition of an atom, atomic number, atomic mass, and the relationship between protons and electrons. The quiz assesses understanding of fundamental atomic structure and properties.

Uploaded by

2035166
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Atoms, Elements, and the Periodic Table Practice Quiz

Instructions: Choose the best answer for each question. Circle the letter of the correct answer.
For the short answer questions, write your response in the space provided.

1.​ What is an atom?​


A) The smallest unit of matter​
b) A type of molecule​
c) A compound made of different elements​
d) None of the above

2.​ What does the atomic number of an element represent?​


a) The total number of protons in the nucleus​
b) The total number of neutrons in the nucleus​
c) The total number of electrons in a neutral atom​
D) Both a and c

3.​ What is the atomic mass?​


a) The mass of protons only​
b) The mass of electrons only​
c) The total mass of protons and neutrons in an atom​
D) The mass of the entire atom including electrons

4.​ How many protons does a neutral atom of carbon (C) have?​
A) 6​
b) 12​
c) 14​
d) 8

5.​ What is the charge of an electron?​


a) Positive​
B) Negative​
c) Neutral​
d) Both positive and negative

6.​ If an atom has 10 protons and 12 neutrons, what is its atomic mass?​
a) 10​
b) 12​
C) 22​
d) 2
7.​ What is the relationship between protons and electrons in a neutral atom?​
a) Protons are more than electrons​
b) Protons are less than electrons​
C) Protons and electrons are equal in number​
d) There is no relationship

8.​ Which particle(s) contribute to the atomic mass of an atom?​


a) Protons only​
b) Neutrons only​
C) Protons and neutrons​
d) Electrons only

9.​ How can you find the number of neutrons in an atom?​


A) Subtract the atomic number from the atomic mass​
b) Add the number of protons and electrons​
c) Use the atomic number directly​
d) None of the above

10.​Which of the following particles is found in the nucleus of an atom?​


a) Protons​
b) Neutrons​
C) Both a and b​
d) Electrons

Short Answer Questions:

11.​If an atom has an atomic number of 8, how many protons does it have?

If an atom has an atomic number of 8, it has 8 protons.

12.​In a neutral atom of sodium (Na), which has an atomic number of 11, how many
electrons are present?

In a neutral atom of sodium, 11 electrons are present.

13.​If an atom has 15 protons and 18 neutrons, how many electrons does it have in a
neutral state?
In a neutral state, it has 15 electrons. This is because the proton number is the same as
the electron number.

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