The basic particle from which all elements are made the smallest particle and element that has the properties of that element.

A tiny, negatively charged particle that moves around the outside of the nucleus of an atom.

In cells, a large organelle that contains the cells genetic material in the form of DNA and controls many of the cells activities, the central core of an atom which contains protons and neutrons.

Small, positively charged particles that are found in the nucleus of an atom.

Region of an atom in which electrons of the same energy are likely to be found.

Small sparkle in the nucleus of an atom, with no electrical charge

The number of protons in the nucleus of an atom.

An atom with the same number of protons in a different number of neutrons from other atoms of the same element

The sum of protons and neutrons in the nucleus of an atom.

Average mass of all the isotope of an element.

Arrangement of the elements showing the repeating pattern of their properties.

A one or two letter representation of an element.

A horizontal row of elements in the period table.

Elements in the same vertical colum of the periodic table also called family.

A class of elements characterized by physical properties that includes shininess, Malleability, ductility, and conductivity

The way a mineral reflects light from its surface.

A term used to describe material that can be hammered or rolled into flat sheets

A term used to describe the material that can be pulled out into a long wire

The ability of an objective transfer heat.

Electrical conductivity

The body of an object to carry electric current.

The ease and speed with which an element combines, or reacts, with other elements and compounds.

The gradual wearing away of a metal element due to a chemical reaction.

An element group one of the periodic table.

An element in group 2 of the periodic table.

One of the elements in group three through 12 of the periodic table.

An element that lacks most of the properties of a metal.

A molecule consisting of two atoms.

An element that has some characteristics of both metals and nonmetals.

A substance that can conduct electric current under some conditions.

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Chapt 3

Question	Answer
Atom	The basic particle from which all elements are made the smallest particle and element that has the properties of that element.
Electron	A tiny, negatively charged particle that moves around the outside of the nucleus of an atom.
Nucleus	In cells, a large organelle that contains the cells genetic material in the form of DNA and controls many of the cells activities, the central core of an atom which contains protons and neutrons.
Proton	Small, positively charged particles that are found in the nucleus of an atom.
Energy level	Region of an atom in which electrons of the same energy are likely to be found.
Neutron	Small sparkle in the nucleus of an atom, with no electrical charge
Atomic number	The number of protons in the nucleus of an atom.
Isotope	An atom with the same number of protons in a different number of neutrons from other atoms of the same element
Mass number	The sum of protons and neutrons in the nucleus of an atom.
Atomic mass	Average mass of all the isotope of an element.
Periodic table	Arrangement of the elements showing the repeating pattern of their properties.
Chemical symbol	A one or two letter representation of an element.
Period	A horizontal row of elements in the period table.
Group	Elements in the same vertical colum of the periodic table also called family.
Metal	A class of elements characterized by physical properties that includes shininess, Malleability, ductility, and conductivity
Luster	The way a mineral reflects light from its surface.
Malleable	A term used to describe material that can be hammered or rolled into flat sheets
Ductile	A term used to describe the material that can be pulled out into a long wire
Thermal conudctivity	The ability of an objective transfer heat.
Electrical conductivity	The body of an object to carry electric current.
Reactivity	The ease and speed with which an element combines, or reacts, with other elements and compounds.
Corrosion	The gradual wearing away of a metal element due to a chemical reaction.
Alkali metal	An element group one of the periodic table.
Alkaline earth metal	An element in group 2 of the periodic table.
Transition metal	One of the elements in group three through 12 of the periodic table.
Non metal	An element that lacks most of the properties of a metal.
Diatomic molecule	A molecule consisting of two atoms.
Metalloid	An element that has some characteristics of both metals and nonmetals.
Semiconductor	A substance that can conduct electric current under some conditions.

Created by: user-1994379

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