Chemical Bonding

Why do atoms share electrons?

• To attain the electron configuration of a noble gas.

• To become ions and take a charge

• to increase the mass

• it's a nice thing to do.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the compounds below contains a single covalent bond?

• Br₂

• SO

• HCl

• Both a and c

What is a polar molecule?

• One that has a partial negatitive on one end and a partial positive on the other

• a molecule with little vibration

• an ionic compound

• the nonpolar bonds are arranged sequentially

How do covalent bonds form?

• Donating & receiving valence e- between atoms.

• Opposite slight charges attract each other between compounds.

• Scientists are still not sure how they form.

• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2

What two types of atoms make a covalent bond?

• 2 Nonmetals

• 1 Nonmetal and 1 Metal

• 2 Metals

• 2 Noble Gases

Which of the following is NOT formed by a covalent bond?

• K₂S

• H₂O

• I₂

• CO₂

What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?

• Ionic

• Polar Covalent

• Nonpolar Covalent

• Van der Waals Force

Diatomic elements are defined as IDENTICAL elements that bond with each other (i.e. Oxygen with Oxygen).  What type of bond should they form?

• Ionic

• Polar Covalent

• Nonpolar Covalent

• Van der Waals force

Why do ionic bonds form?

• so the number of protons equals the number of electrons

• to fill the outermost energy level

• so an atom can become unstable

What are ionic bonds?

• valence electrons transferred between atoms

• Inner most electrons transferred between atoms

• valence electrons shared between atoms

• Inner most electrons shared between atoms