Iowa Science Prep

In the modern Periodic Table, elements are arranged

• according to atomic mass.

• according to atomic number.

• in alphabetical order.

• according to the number of neutrons in their nuclei.

What is Cu?

• Copper

• Zinc

• Iron

• carmel

The Modern Periodic Table of Elements is arranged by

• atomic mass

• atomic number

• valence electrons

• number of isotopes

Sodium (Na) is found in period 

• 3

• 2

• 4

• 1

Tags

NGSS.MS-PS1-1

The atomic number tells you what?  READ THE ANSWERS CAREFULLY

• only the number of electrons

•  only the number of protons

• only the number of neutrons

• the number of both electrons and protons in an atom.

What does the atomic mass tell you? 

• Basically,the number of electrons and protons

• The number of neutrons

• Basically, the number of protons and neutrons

• The number of protons.

Tags

NGSS.MS-PS1-1

The atoms we study in 6th grade are neutral, which means they have the same number of

• protons and electrons

• protons and neutrons

• electrons and neutrons

What does 12.011 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Tags

NGSS.MS-PS1-1

What does the C represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Tags

NGSS.MS-PS1-1