5.1 Valence Electrons & Reactivity

Most atoms are stable with______ electrons in their valence shell

• 1

• 2

• 8

• 18

What families are the most reactive metals?

• Transition Metals & Alkaline Earth Metals

• Noble Gases & Halogens

• Alkali Metals & Alkali Earth Metals

• Halogens & Oxygen family

Why are halogens so reactive?

• They want to "get rid" of their only valence electron

• They "want" one more valence electron

• They are non reactive, they have a full shell

Which elements have similar chemical properties? (Hint: Look at the periodic table!!!!!)

• boron and carbon

• oxygen and sulfur

• aluminum and bromine

• argon and silicon

Which of the following statements describes group 2 of the periodic table?

• Stable non-metals with 1 valence electron
• Stable Metals with 2 valence electrons
• Highly reactive non-metals with 1 valence electron.
• Highly reactive metals with 2 valence electrons.

Tags

NGSS.HS-PS1-1

What groups are the most reactive non metals?

• Alkali Metals & Alkali Earth Metals

• Oxygen family & Halogens

• Noble Gases & Nitrogen family

• Oxygen family & Nitrogen family

Describe this element.

• Highly reactive metal
• Highly reactive nonmetal
• Stable
• Less stable non metal

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why does chemical bonding occur?

• Atoms want to stay as far away from other atoms as possible

• Atoms want to be stable, so they share valence electrons

• Atoms are attracted to other neutrally charged atoms

• Atomic glue holds elements together

Metals conduct electricity because...

• They hold tightly to their valence electrons

• They give up valence electrons easily

• They do not have any valence electrons

• They have many valence electrons

Sodium has 1 valence electron. Sodium is.....

• Slightly reactive

• Extremely reactive

• Stable