periodic table

How many valence electrons are found in atoms of group 1?

• 7
• 6
• 4
• 1

USE THE PERIODIC TABLE

How many valence electrons does carbon have?

• 4

• 12

• 6

• 14

How many valence electrons does Nitrogen Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Tags

NGSS.MS-PS1-1

Which group has the greatest number of valence electrons?

• 1
• 14
• 18
• 16

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons are found in atoms of group 15?

• 4
• 5
• 2
• 3

When trying to identify an unknown element, a scientist determines what other elements reacts with chemically. Which property of the unknown element determines the other element it reacts with?

• The total number of neutrons in the unknown element

• The total number of particles in the nucleus of the unknown element

• The number of protons in the nucleus of the unknown element

• The number of valence electrons in the unknown element

What groups are the most reactive metals?

• 2 and 3

• 1 and 18

• 1 and 2

• 16 and 17

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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.

What are the elements (Be, Mg, Ca,...) in group 2 called?

• Alkali metals

• Alkaline earth metals

• Halogens

• Nobel Gases

Which elements have the most similar chemical properties?

• boron and carbon

• oxygen and sulfur

• aluminum and bromine

• argon and silicon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2