The region of space where an electron is found most frequently is its: - ✔️✔️orbital
Orbitals make up: - ✔️✔️energy levels or electron shells
electrons in an atoms outermost energy level are its: - ✔️✔️valence electrons
Atoms of reactive elements tend to combine into molecules by forming: - ✔️✔️Chemical
bonds
The five most important chemical interactions in biological molecules are: - ✔️✔️Covalent
bonds, Ionic bonds, Hydrogen bonds, Hydrophobic interactions, and Van Der Walls
Forces
Covalent bonds form when atoms share pairs of: - ✔️✔️valence electrons
for covalent bonds, stronger bonds are: - ✔️✔️shorter than longer bonds
In a nonpolar covalent bond: - ✔️✔️electrons are shared equally
In a polar covalent bond: - ✔️✔️electrons are shared unequally
In a polar covalent bond the atom that attracts the electrons: - ✔️✔️more strongly carries
a partial negative charge.
A cation carries a: - ✔️✔️positive charge
an anion carries a: - ✔️✔️negative charge
ionic bonds have three key features: - ✔️✔️-exert an attractive force
-force extends in all directions
-vary in strength
An atom with a high _________ will hold the electrons more tightly and have partial
negativity - ✔️✔️electronegativity
In nonpolar covalent bonds atoms have: - ✔️✔️no charge
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