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Quiz Lesson E-2 (Science)


Izzy927
76 played - 11 yrs ago
Science Lesson E-2
 
QUIZ 12 QUESTIONS
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1

A pure substance that cannot be broken down into any simpler pieces.

2

The smallest unit of an element that retains the properties of that element.

3

A particle in the nucleus of an atom that carries one unit of positive electric charge.

4

An atom's dense center where most of its masses are.

5

An atom's dense center where most of its masses are.

6

Any substance that is formed by a chemical combination of two or more elements and acts like a single substance (can only be broken down by a chemical reaction. )

7

A particle that contains more than on e atom joined together.

8

How is a compound different from an element?

9

Name 2 useful compounds

10

What is a chemical formula?

11

How are elements classified?

12

What is the periodic table?


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