Electronegativity, Bonding, Hydrophobicity

What is the definition of electronegativity?

• The electrons attraction toward negativity

• The atoms that become negative due to extra electrons in their full valence shell

• A property of an atom that describes their attraction towards electrons

• An atom's desire to attract protons

Tags

NGSS.HS-PS1-1

Select both atomic properties that would lead to high electronegativity

• A nearly empty valence shell

• A nearly full valence shell

• A full valence shell

• Small size

• Large size

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What type of bond would be formed between a bromine (Br) and a lithium (Li)?

• ionic bond

• polar covalent bond

• nonpolar covalent bond

• hydrogen bond

What type of bond would be formed to create a molecule of hydrogen? H₂

• ionic bond

• polar covalent bond

• nonpolar covalent bond

• hydrogen bond

Which atom has the weakest attraction for the electrons in a bond with an H atom?

• Cl atom
• F atom
• O atom
• S atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which atom has the lowest electronegativity?

• Nitrogen

• Oxygen

• Fluorine

• Neon

If C and H enter a bond, it is nonpolar.

Which atom will develop a partial negative charge?

• C

• H

• Neither

• Both

If C and N form a bond, it is polar.

Which atom will form a partial negative charge?

• C

• N

• Neither

• Both

Which bonds can form intermolecular interactions (like H-bonds) with water?

• ionic

• polar covalent

• nonpolar covalent

• none

What is the BEST definition of hydrophobic?

• water loving

• the inability to hydrogen bond with water

• water fearing

• the ability to hydrogen bond with water