Understanding Elements and Atoms

Understanding Elements and Atoms

Assessment

Interactive Video

Chemistry

6th - 8th Grade

Hard

Created by

Jennifer Brown

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an element?

A substance that can be broken down by chemical means

A substance that cannot be broken down by chemical means

A compound of two or more substances

A mixture of different substances

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a correct symbol for an element?

Na for Sodium

H for Helium

C for Calcium

O for Osmium

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes each element unique?

The way it reacts with water

The specific combination of protons, neutrons, and electrons

The type of chemical bonds it forms

The number of atoms it contains

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are in a water molecule?

Three

Two

Four

One

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for water?

H2O

OH2

HO2

H2O2