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Chemistry Vocabulary

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Section 1

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Periods (periodic table)

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Chemistry Science

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6 years ago

Date created

Mar 1, 2020

Cards (21)

Section 1

(21 cards)

Periods (periodic table)

Front

horizontal rows which indicate the number electron shells of an atom

Back

Element

Front

A pure substance made of only one kind of atom

Back

Acid

Front

A compound that increases the hydrogen ion concentration of a solution.

Back

Compound

Front

A substance made up of atoms of two or more different elements joined by chemical bonds

Back

Covalent compound

Front

a chemical compound formed by the sharing of electrons

Back

Base

Front

a compound that produces hydroxide ions in solution

Back

Groups/families (periodic table)

Front

Vertical columns that indicate the number of electrons an atom has on its outer shell

Back

Electrons

Front

Negatively charged subatomic particles found in various energy levels (orbital shells) around the nucleus

Back

Atomic mass

Front

The average mass of all the isotopes of an element (Number of protons and neutrons)

Back

Molecule

Front

Two or more atoms bonded together (either from the same type of element OR from different elements)

Back

Atomic number

Front

the number of protons in the nucleus of an atom

Back

Neutralization

Front

A reaction of an acid with a base, creating a solution that is not as acidic or basic as the starting solutions were. A salt and water are produced.

Back

Diatomic Molecule

Front

Two atoms that bond together (usually of the same element)

Back

Halogens

Front

Contains nonmetals, 7 valence electrons in it's outermost energy level. Very reactive

Back

Noble gases

Front

Elements in group 8 of the periodic table. Have no charge and are gases under normal conditions. (Helium, Neon, Argon, Krypton, Xenon, Radon)

Back

Salts

Front

A compound that forms when an acid and a base neutralize each other.

Back

Protons

Front

Positively charged subatomic particles that are located in the nucleus

Back

ionic compound

Front

Electrons are transferred between elements, causing atoms to have either a positive or negative charge

Back

Neutrons

Front

the particles of the nucleus that have no charge

Back

Mixture

Front

A combination of two or more substances that are not chemically combined

Back

Alkali metals

Front

Group 1, 1 electron in outer level, very reactive, soft, silver, shiny, low density; metals:Lithium, Sodium, Potassium, Rubidium, Cesium, Francium

Back