Covalent Exam

Covalent compounds

• Share electrons
• transfer electrons
• contain a sea of electrons
• conduct electricity

Tags

NGSS.HS-PS1-1

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

What happens when an atom loses an electron?

• Neutral (no charge)
• Positive charge
• Negative charge

Tags

NGSS.HS-PS1-7

What happens when an atom gain an electron?

• Neutral(no charge)
• Positive charge
• Negative charge

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

• Pairs of valence electrons
• Inner shell electrons
• Mobile Electrons
• Electrons closest to the nucleus

What type of bond is shown in this picture?  It is the WEAKEST type & attracts one water compound to another!

• Ionic bond
• Polar Covalent
• Nonpolar Covalent
• Van der Waals force

Compared to ionic compounds, molecular compounds generally have...

• good conductivity
• greater densities
• more chemical bonds
• a low boiling point

What would you name this molecule?

• SNa₃

• H₃O

• NaCl

• H₂O

Tags

NGSS.MS-PS1-1

Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

What elements have zero electronegativity?

• metals
• nonmetals
• metalloids
• noble gases