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Unit 5 Atom and Periodic Table Post Test

Authored by Christopher Powers

Science

9th Grade

NGSS covered

Unit 5 Atom and Periodic Table Post Test
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22 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the periodic table of elements, what do all of the elements in group 2 have in common?

An atom of each element can hold up to eight electrons in its outer energy level.

An atom of each element can hold up to six electrons in its outer energy level.

Each element is an alkaline earth metal.

Each element is a halogen.

Each element is dull, brittle, and breaks easily.

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which elements are found in the same period of the periodic table?

Hydrogen

Helium

Lithium

Beryllium

Boron

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Select the correct answer. The image shows a portion of the periodic table. Which two elements have similar characteristics?

neon and fluorine

chlorine and sulfur

fluorine and chlorine

oxygen and chlorine

argon and fluorine

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Select the correct answer. Identify Bohr's model of the atom. His model describes the reactivity of an element based on its number of valence electrons.

A

B

C

D

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the correct answer. Which atomic model proposed that electrons move in specific orbits around the nucleus of an atom?

Dalton’s atomic model

Thomson’s atomic model

Rutherford’s atomic model

Bohr’s atomic model

quantum atomic model

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the correct answer. Which types of orbitals are found in the principal energy level n = 3?

s, d

s, p, d

s, p

s, p, f

s, d, f

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the correct answer. An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?

10

20

30

0

200

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