Atoms, Elements, Compounds, The Periodic Table

A(n) _______ is a pure substance made up of just one kind of atoms.

• compound

• element

• atom

• period

The _____________organizes all the elements and shows their symbols and atomic weights.

• Periodic Table of the Elements

• Elemental Table of the Periods

• Element Table of the Atoms

• Periodic Table of the Compounds

There are _______ elements on the current periodic table.

• 92

• 1,347,016

• 18

• 118

Carbon, oxygen, and hydrogen are all common _________.

• elements

• atoms

• compounds

• integers

Tags

NGSS.MS-PS1-1

Everything we know of in the universe is made up of combinations of the 118 known elements.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-1

A ___________ is a mixture of two or more elements.

• atom

• element

• periodic table

• compound

Water, salt, sugar, and other common items are __________.

• elements

• compounds

• energy

• tables

Tags

NGSS.MS-PS1-1

Is Iron (Fe) an element or a compound?

• element

• compound

Which of the following statements describes an element?

• It contains only one kind of atom.

• It can be decomposed by ordinary chemical means.

• It is composed of atoms of two or more elements that bond together.

• It has unique properties that are different from the properties of its individual elements.

Which of the following statements describes a compound?

• It contains only one kind of atom.

• It can be separated by physical means.

• It cannot be decomposed into simpler types of substances.

• It consists of atoms of two or more different elements bond together.