This type of element appears silvery and very reactive when exposed to water.

• Alkali Earth Metals

• Alkaline Earth Metals

• Alkali Metals

• Transition Metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Clothes iron uses the element called 'iron.' Iron is a good conductor of heat. This element is an example of...

• Alkaline Metals

• Alkali Metals

• Transition Metals

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

This group of element is not as reactive as the alkali metals.

• Alkaline Earth Metals

• Alkali Metals

• Transition Metals

They appear shiny & silvery-white.

• Alkali Metals

• Alkaline Earth Metals

• Transition

This group of element is hard and tough but can be bent.

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

Copper is used to make electric wires. Electric conductivity is a property of...

• Alkaline Earth Metals

• Transition Metals

• Alkali Metals

Tags

NGSS.HS-PS2-5

Which of the following is not a common reaction when an alkali metal is exposed to water?

• catches fire

• produces heat

• produces smoke

• produces colored smoke

How many are naturally occurring elements?

How many are man-made elements?

Who sorted all discovered elements?