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-PS1-2

NGSS.HS-PS1-1

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