Reactivity of an Element

Is the element reactive or nonreactive/stable?

• reactive

• nonreactive/stable

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Match the following

• transition metals

• Least reactive elements

• alkali metals

• least reactive metals

• halogens

• 2nd most reactive metals

• alkaline earth metals

• Very reactive non metals

• noble gases

• Most reactive metals

Tags

NGSS.MS-PS1-2

Which elements have similar reactivities?

• Lithium

• Boron

• Sodium

• Argon (Unknown)

Answer explanation

Elements with equal valence electrons have similar chemical properties and reactivity.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this element reactive or non reactive?

• Reactive

• Nonreactive

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?

• The element is fluorine, and it is not very reactive.

• The element is sodium, and it is not very reactive.

• The element is sodium, and it is highly reactive.

• The element is fluorine, and it is highly reactive.

the ability of a substance to change.

• Reactivity

• Metalloid

• Compound

• State of Matter

Tags

NGSS.MS-PS1-2

a substance that is the building block of all matter (made of one kind of atom).

• element

• atom

• compound

• mixture

the tendency of an element to bond with other elements, and is determined by the number of valence electrons

• Group or Family

• Period

• Periodic Table

• Reactivity

the most reactive elements found in group/family 1 or 1A on the Periodic Table.

• Halogens

• Alkali Metals

• Noble Gasses

the most reactive nonmetals found group/family 17 or 7A on the Periodic Table.

• Halogens

• Alkali Metals

• Noble Gasses