Chemistry Vocabulary Flashcards
Matter
Anything that takes up space
Element
Simplest form of matter with certain chemical properties
Protons
Carry a single positive charge
Neutrons (Neutral)
Carry no electrical charge
Electrons
Carry a single negative charge
Atomic Number (Never Changes)
The number of protons
Atomic Weight
The number of neutrons and protons
Isotopes (Unstable)
The same # of protons and electrons, but a different # of neutrons
Compound
Formed when two or more atoms of different elements combine
Ion
An atom with a positive or negative charge
Cation
A positively charged ion
Anion
A negatively charged ion
Ionic Bond
Formed between oppositely charged ions
Covalent Bond
Formed between atoms that share electrons
Polar Covalent Bond
Electrons are shared unequally between atoms