Chemical Bonding - Covalent

Which of the following elements are not found as diatomic molecules?

• a) Hydrogen

• b) Chlorine

• c) Helium

• d) Nitrogen

What type of chemical bonding is best defined as 'SHARING OF ELECTRONS '?

• a) Intermolecular Bonding

• b) Metallic Bonding

• c) Ionic Bonding

• d) Covalent Bonding

What type of atoms make a covalent bond?

• 2 or more nonmetals

• 1 nonmetal and 1 metal

• 2 metals

• 2 Noble Gases

Phosphorus has 5 valence electrons and bromine has 7. Based on their structure, what is the correct formula for the molecule they form?

• PBr

• PBr₃

• P₃Br

• P₃Br₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons are shared in a single covalent bond?

• 2 pairs
• 4
• 2
• 1

Which of the following pairs form a covalent bond ?

• carbon and oxygen

• nitrogen and sodium

• calcium and chlorine

• sodium and fluorine

Which prefix is used to indicate number of oxygen atoms CO_{2 ?}

• mono

• di

• tri

• tetra

Which prefix is used to indicate number of oxygen atoms in P₂O₅ ?

• di

• tetra

• penta

• hexa

In a covalent bond , electrons are ________

• transferred

• shared

Tags

NGSS.HS-PS1-2

What part of an atom is involved in chemical bonding?

• protons

• neutrons

• valence electrons

• nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2