The Modern Periodic Table of Elements is arranged by

• atomic mass
• atomic number
• valence electrons
• number of isotopes

What does the 6 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Tags

NGSS.MS-PS1-1

What does 12.011 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

These are found on the Periodic Table.

• Compounds
• Elements
• Mixtures

the basic structural unit of matter

• atom

• matter

• element

• nucleus

Tags

NGSS.MS-PS1-1

one or two letters that represent the name of an element

• element name

• element symbol

• atomic number

• atomic mass

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

a row on the Periodic Table of Elements

• family

• period

• row

• isotope

Most of the mass of an atom is found it its _____.

• electron cloud
• nucleus
• atomic number
• empty space

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1