Which scientist was the first to arrange elements based on physical/chemical properties and increasing atomic mass?

• Dmitri Mendeleev

• John Newlands

• Henry Moseley

Mendeleev pieced together his periodic table based on which properties:

• Atomic Mass

• Reactivity

• Formula of Compounds

• Electronegativity

Which scientist was so exact in with is organization of the elements that his table demonstrated predictive value?

• Mendeleev

• Newlands

• Moseley

Which scientist arranged elements in periods and groups/families?

• Mendeleev

• Moseley

• Newlands

Which scientist arranged elements in octaves and noticed certain properties repeated every 8th element?

• Mendeleev

• Moseley

• Newlands

Vertical Columns containing elements with similar physical and chemical properties.

There are 18 of them.

• Groups

• Periods

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Horizontal Rows in order of atomic number.

There are 7 of them.

• Groups

• Periods

The 3 types of elements are:

• metalloids

• nonmetals

• gases

• metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Good conductors of heat and electricity, Malleability, Ductile, and Luster.

• metals

• nonmetals

• metalloids

Tags

NGSS.HS-PS1-1

Brittle (non-malleable, non-ductile) and Poor conductor of heat and electricity.

• metals

• nonmetals

• metalloids