Honors Chemistry Unit 4 Test | Comprehensive Questions and Answers Latest Updated
2024/2025 With 100% Verified Solutions
Ionic Bond - Force of attraction between two oppositely charged ions formed by one particle losing
electrons and another gaining electrons; formed when one atom takes an electron from another atom--
ions are the result (one positive, one negative)--they stick together because of opposite charges;
difference between electronegativities is high; formula unit; metals--low electronegativity--lose
electrons to form cations; nonmetals--high electronegativity--gain electrons to form anions; metals-
nonmetals
Covalent Bond - Electrons are shared between atoms with relatively high electronegativity (nonmetals);
formed when both atoms have a strong attraction to the electron, so they share the electron--neither
atom has a charge; molecules; difference between electronegativities is low; unequal sharing-polar
covalent bond; equal non polar covalent bond; nonmetals-nonmetals
Metallic Bond - Metal bonded with a metal; two or more metals atoms bonded together; occurs when
neither atom has a strong attraction to the electrons; metals have low electronegativity values; metals
bonded with other metals have "spare" electrons that end up forming the "sea of electrons"
Polar Covalent Bond - Bonds where the electrons are not equally shared--there is a preference for one
nucleus over the other
Semimetal - Metallic bonds where the electrons are more tightly held; these substances will exhibit
fewer metallic properties and more covalent properties
Diatomic Molecules - Br2, I2, N2, Cl2, H2,O2, F2; a molecule consisting of two atoms
Naming Covalent Compounds Prefixes - 1-mono
2-di
3-tri
4-tetra
5-penta
6-hexa
7-hepta
