Elements

Carbon, oxygen, and hydrogen are all common _________.

• elements

• atoms

• compounds

• integers

Tags

NGSS.MS-PS1-1

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 is an element?

• Gold

• Air

• Water

• Carbon Dioxide

• Nitrous Oxide

Is Iron (Fe) an element or a compound?

• element

• compound

How many elements currently exist?

• 96

• 102

• 118

• 294

What is the atomic number of this element?

• 14

• 7

• 15

• 18

Tags

NGSS.MS-PS1-1

What is the chemical symbol for Zinc?

• Zn

• zn

• ZN

• Zinc

How many atomic mass of Zinc?

• 35.4

• 95

• 65.4

• 30

Tags

NGSS.MS-PS1-1

Using this image, which piece of information is the atomic mass?

• 54

• Xenon

• Xe

• 131.293

Using this image, which piece of information is the atomic number?

• 54

• Xenon

• Xe

• 131.293