Stability in Bonding

The properties of a compound are ________________ the properties of the elements making up the compound.

• the same as
• different from
• greater
• less than

A chemically stable atom has ___________ valence electrons in it's outer energy level.

• 6
• 7
• 8
• 9

How many atoms are in the compound Mg(NO3)2?

• 8

• 9

• 10

• 11

Tags

NGSS.MS-PS1-1

What is the total number of atoms in the compound NH4C2H3O2?

• 10
• 11
• 12
• 13

Tags

NGSS.MS-PS1-1

When an atom gains or loses electrons, the charged particle that results is called a(n) __________.

• neutron
• proton
• quark
• ion

Why do the noble gases not form compounds readily?

• empty outer energy levels
• full outer energy levels
• they have no electrons
• they are unstable

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What does a chemical formula not show?

• names
• chemical symbols
• atoms of elements
• elements

The number of each type of an atom in compound for a chemical formula is shown by __________.

• chemical symbols
• superscripts
• subscripts
• dots

Are the atoms more stable when they are bonded together or when they are apart? 

• Bonded Together
• Apart

Tags

NGSS.HS-PS1-4

What is a valence electron?

• an electron that is found in the outermost shell of an atom. 
• an electron found in the innermost shell of an atom.
• an electron found in the middle shell.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2