Regents Chemistry Breaking Forming Bonds

In covalent bonds, electrons are ___________.

• transferred
• gained
• lost
• shared

In a polar covalent bond, electrons are shared ___________.

• equally
• unequally
• between non-metals with similar electronegativities
• between a metal and a non-metal

Electronegativity is a measurement of the ability of a nucleus to...

• attract bonding electrons
• attract other nuclei
• attract elenece in the non-valence energy levels

In this Lewis structure, the symbol above F means...

• electrons are being transferred to Fluorine
• electrons are less attracted to F than H
• electrons are more attracted to F than H
• Fluorine has formed a cation

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A diatomic molecule like O2 is always_______ because electrons are shared ________.

• nonpolar; equally
• polar; equally
• nonpolar; unequally
• nonpolar; unequally

Tags

NGSS.HS-PS1-1

A bond with a partially negative end and a partially positive end is:

• ionic
• polar
• non-polar
• isometric

Which molecule contains bonds with a GREATER polarity?

• HCl
• CCl4

When you are asked to find bond polarity, compare EN values of each bonding atom to the central atom

• true
• false

The chemical bond formed when two atoms share electrons  is called a(an) IONIC bond. 

• True
• False

Tags

NGSS.HS-PS1-1

How many electrons are shared in a single bond?

• 2 pairs
• 4
• 2
• 1