Free Printable Atoms & The Periodic Table Unit Test

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Atoms & The Periodic Table Unit Test

Total questions: 21

Worksheet time: 11mins

Name

Class

Date

1. How many neutrons does Beryllium (Be) most likely have?

2. Elements in the same group on the periodic table have similar chemical properties.

True

False

4. Based on the periodic table below, What is the atomic mass of Barium (Ba)?

(a)

5. Nitrogen (N) has 7 protons.

True

False

6. Who is credited with the development of the first periodic table?

Dmitri Mendeleev

Marie Curie

Antoine Lavoisier

Niels Bohr

7. Complete the sentence: The order of elements in the periodic table is based on the number of (a) in the nucleus.

8. Complete the sentence: Because atoms of elements in the same group of the periodic table have the same number of (a) , they have similar properties.

9. Complete the sentence: Neon is an inert gas because its outer (a) is full of electrons.

13. The number of protons in an atom is equal to its atomic number.

True

False

10.

14. Based on the Bohr model of Sulfur, how many protons will it most likely have?

(a)

11.

15. How is atomic mass calculated?

By combining the total count of protons and electrons in an atom.

By adding up the masses of protons, neutrons, and electrons in an atom.

By dividing the count of protons by the count of neutrons.

By multiplying the mass of electrons by the count of protons.

by counting protons and neutrons

12.

16. Elements are made up of different types of atoms.

True

False

13.

17. How many electrons are needed to fulfill the octet rule for Carbon?

14.

18. What is an isotope?

An isotope is a form of ion with a positive charge.

An isotope is a type of chemical bond between atoms.

An isotope is an atom with a different number of protons than electrons.

An isotope is a variant of an element with the same number of protons but a different number of neutrons.

15.

19. How many valence electrons does Aluminum have?

(a)

16.

20. On the periodic table, columns of elements are known as __(1)___ and rows are known as __(2)___ .

a. (1) families, (2) periods

Option 2

b. (1) periods, (2) families

c. (1) periods, (2) metals

d. (1) metals, (2) metalloids

17.

How many neutrons are in the atom "K"?

18.

What is the atomic number of the atom shown in the picture?

19.

Select the nucleus.

20.

Match the following

Atomic Number

Average Atomic Mass

15.999

Symbol

Name

Oxygen

21.

The nucleus of an atom has a (a) charge.

Choose from the below words

positive

negative

neutral

bank

100 %

Atoms & The Periodic Table Unit Test

Total questions: 21

Worksheet time: 11mins

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