Determining Valence Electrons

Which of the following electron dot notations is correct for the element carbon, C, atomic #6?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

• 12
• 7
• 8
• 14

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

All atoms are most stable with (or would "prefer") how many electrons in their valence shell?

• 1

• 2

• 8

• 18

Tags

NGSS.HS-PS1-1

A charged particle that has gained or lost electrons is called a _____.

• molecule
• ion
• isotope
• element

A cation is a ____ ion.

• negative
• positive
• neutral
• ficticious

Tags

NGSS.HS-PS1-2

A anion will be a ____ ion.

• negative
• positive
• neutral
• ficticious

Tags

NGSS.HS-PS1-2

What type of bond is this? Lithium with Fluorine?

• ionic
• covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are ionic compound called?

• rocks

• covalent bonds

• crystals

• isomers

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

• Alkali metals

• Alkaline earth metals

• Halogens

• Nobel Gases

What are valence electrons?

• The total number of electrons in an atom

• The number of electrons in the outermost shell

• The number of electrons in the second shell

• The number of protons in the outermost shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2