Basic BioChemistry

The measurement of an element's affinity for electrons is called:

• Electronegativity
• Valence Shell
• Atomic Radius
• Pauling Quotient

Which of the following is not an element found in large abundance in organisms?

• Calcium
• Carbon
• Hydrogen
• Nitrogen

The elements: C H O N typically represent what proportion of an organism's element make up?

• 78%
• 68%
• 96%
• 82%

Bonds where there is unequal sharing of electrons are called:

• Polar Covalent Bonds
• Non-Polar Covalent Bonds
• Ionic Bonds
• London Forces

Ionic Bonds form when ΔE_{n is}

• Above 1.7
• Below 1.7
• Less than 0.4
• Between 1.7 and 0.4

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How many valence electrons are present in Carbon?

• 6
• 4
• 3
• 8

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Atoms that have the same number of protons but differ in the amount of neutrons are called:

• Ions
• Isotopes
• Noble Gases
• Actinides

NaCl is an example of a _____________ compound

• Ionic 
• Polar
• Non-Polar
• Organic

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Carbon Tetrachloride (CCl₄) is a __________ compound.

• Ionic
• Polar
• Non-Polar
• DiAtomic

The outermost set of electrons around an atom are called:

• Electronegativity
• Quantum Number
• Valence Electrons
• Oxidation Number

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