Chapter 3: Periodic Table and Elements Review

Question 1

An element that lacks most of the properties of a metal

Accepted Answer

nonmetal

Question 2

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

Accepted Answer

reactivity

Question 3

A substance that can conduct electricity under some conditions.

Accepted Answer

semiconductor

Question 4

Groups 3 through 12 metals including most familiar metals. Good conductors of electricity.

Accepted Answer

transition metals

Question 5

The average mass of all the isotopes of an element.

Accepted Answer

atomic mass

Question 6

The number of protons in the nucleus of an atom.

Accepted Answer

atomic number

Question 7

A mixture of two or more elements, one of which is a metal

Accepted Answer

alloy

Question 8

Bottom of bottom two rows of periodic table. Most artificially made, very unstable, short life

Accepted Answer

actinides

Question 9

A small particle in the nucleus of the atom, with no electrical charge.

Accepted Answer

neutron

Question 10

The ability of an object to transfer heat or electricity to another object.

Accepted Answer

conductivity

Question 11

Top of bottom two rows of periodic table. Soft, malleable, shiny metals with high conductivity.

Accepted Answer

lanthanides

Question 12

Reaction involving particles in the nucleus of an atom that can change one element into another

Accepted Answer

nuclear fusion

Question 13

A one- or two- letter representation of an element.

Accepted Answer

chemical symbol

Question 14

A term used to describe material that can be pounded into shapes.

Accepted Answer

malleable

Question 15

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

Accepted Answer

ductile`

Question 16

An element in Group 1 that loses 1 electron when reacting with other elements.

Accepted Answer

alkali metals

Question 17

An element in Group 18. Do not gain, lose, or share electrons. Nonreactive.

Accepted Answer

noble gases

Question 18

Machine that moves atomic nuclei at high speeds, sometimes forming heavier elements

Accepted Answer

particle accelerator

Question 19

Gas-like state consisting of a mixture of free electrons & atoms that are stripped of electrons

Accepted Answer

plasma

Question 20

A small, positively charged particle in the nucleus of the atom.

Accepted Answer

proton

Question 21

An element found in Group 17. Means "salt forming"

Accepted Answer

halogen

Question 22

A molecule consisting of two atoms.

Accepted Answer

diatomic molecule

Question 23

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

Accepted Answer

electron

Question 24

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

Accepted Answer

metalloid

Question 25

Group 2 metals that are fairly hard, gray-white, and good conductors of electricity

Accepted Answer

alkaline earth metals

Question 26

The central core of an atom containing protons and usually neutrons.

Accepted Answer

nucleus

Question 27

Class of elements char. by phy. props includ. shininess, malleability, ductility, conductivity

Accepted Answer

metal

Chapter 3: Periodic Table and Elements Review

Questions 27

Chapter 3: Periodic Table and Elements Review

Questions 27