Chemical Bonding

A covalent bond consists of

• a shared electron
• two attractive ions
• shared electron pair
• octet of electrons

Tags

NGSS.HS-PS1-1

Atoms with a strong attraction for electrons they share with another atom exhibit

• zero electronegativity
• low electronegativity
• high electronegativity
• negative electronegativity

Tags

NGSS.HS-PS1-1

A bond in which there is unequal sharing of electrons is 

• ionic
• polar covalent
• nonpolar covalent
• metallic

If two covalently bonded atoms are identical, the bond is identified as 

• nonpolar covalent
• ionic
• polar covalent 
• coordinate covalent

A chemical bond resulting from electrostatic attraction between positive and negative ions is a(n)

• nonpolar covalent
• ionic
• polar covalent
• coordinate covalent

Tags

NGSS.HS-PS1-3

VSEPR is based on the assumption that 

• positive ions repel each other
• positive ions attract negative ions
• sp² hybridization occurs
• electrons in molecules repel each other

Bond length is equivalent to the distance between nuclei at 

• minimum potential energy
• zero potential energy
• maximum potential energy
• depends on the molecule

In which of the following are electrons shared unequally?

• H₂
• S₈
• HCl
• Cl₂

The correct  electron dot structure for an atom, X, which has the electron configuration 1s²2s²2p⁵ would have a symbol with ____ electrons around it.

• 8 dots
• 5 dots
• 7 dots
• 9 dots

Tags

NGSS.HS-PS1-1

VSEPR accounts for the fact that

• all valence electrons must be involved in bonding
• the C-H bonds in CH₄ all have bond angles of 109.5°
• the carbon atom has 4 bonding electrons
• no two bond angles in a molecule have the same measure