Atoms and the Periodic Table Test

Front

Marla creates a model of atoms. The atoms exhibit similar properties but they do not have the same mass number. Which BEST describes the atoms in Marla's model?

Back

The atoms are isotopes.

Front

Passage 'Passage 5360' and table of characteristics of four elements: Element A, Element B, Element C, Element D. Which element has the highest atomic number?

Back

Element C

Front

The picture shows a piece of unknown substance X. From its reaction, it can be determined that X is a sample of the element with what atomic number? Options: 1, 6, 8, 26

Back

8

Front

The picture shows a piece of unknown substance W. From its reaction, it can be determined that W is a sample of the element. Options: strontium, represented by the symbol Sr; silver, represented by the symbol Sr; sulfur, represented by the symbol S; silver, represented by the symbol S.

Back

strontium, represented by the symbol Sr.

Front

An unknown substance is colorless and has a very low density. This unknown substance could be which element? Options: copper, hydrogen, mercury, boron.

Back

hydrogen

Front

How many protons are in atom II?

Back

11

Front

What is the atomic number of carbon?

Back

6

Front

How many neutrons are in one neutral atom of carbon?

Back

6

Front

How many protons are in a neutral carbon atom?

Back

6

Front

The number of electrons in a neutral carbon (C) atom

Back

is equal to the number of protons in carbon (C).