CMS Ch. 8 Lesson 1 (SAVAAS)

Russian chemist who developed a periodic table of elements & predicted the discovery of new elements

• Mendeleev

• Einstein

• Bohr

Tags

NGSS.HS-PS1-1

Mendeleev grouped the elements by...

• atomic number

• atomic mass

• element name

The pure form of a substance that is made up of one type of atom

• compound

• element

• atom

horizontal rows on the periodic table

• groups

• periods

• lines

Elements are currently arranged by

• atomic mass

• atomic number

• chemical name

Number of protons in an element

• atomic mass

• atomic number

• chemical name

Average mass of all the isotopes of an element

• atomic mass

• atomic number

• chemical name

The one or two letter abbreviation of an element

• atomic mass

• atomic number

• chemical name

Elements in a _____ react most alike one another

• period

• group

• diagonal line

Most metals are a _____ at room temperature.

• solid

• liquid

• gas