Periodic Table Study set VMA

Number of valence electrons in Group 13

3

Number of valence electrons in Group 14

4

Number of valence electrons in Group 15

5

Number of valence electrons in Group 16

6

Number of valence electrons in Group 17

7

Number of valence electrons in Alkaline-Earth metals

2

Number of valence electrons in Noble Gases

8

Halogens are also known as

Group 17(new periodic table)

Number of valence electrons in Group 1

1

What piece of information on the PT determines the identity of any atom? What does this bit of information tel you about the atoms of that element?

Atomic Number--tells you the number of protons in the nucleus of the atom of any element

group

Vertical column on the periodic table

period

Horizontal row on the periodic table

What is the name of the element found in Group 17, Pd 3?

Chlorine

The modern periodic table is organized according to ?

increasing Atomic Number

Mendeleev's PT was organized by?

increasing Atomic Mass

The elements in this family have 5 valence electrons and include N, P, and As.

Nitrogen Family

This family is made up of elements with 7 valence electrons such as F, Cl, and I

Halogens

The elements in this family only have one valence electron, such as Li, Na, and K

Alkali Metals

A group of gases that usually don't form compounds with any other elements

Noble Gases

This element was named for the Latin term Cuprum

Copper

The electrons in the outermost energy level of an atom available to bond chemically

valence electrons

Members of this all have the same number of valence electrons.

Group

Atoms that are created in a lab and not found in nature.

Synthetic/Man-made

A shortened way to represent the element's name.

Chemical Symbol

An element that has similar properties to Xenon

Helium

What can you predict by looking at an element's location in the periodic table

its properties

The elements in the same group or column have ____ properties.

similar

Which two groups contain the most reactive elements?

Groups 1/17

Which group of metals is the most reactive?

Group 1

Group 1

Alkali metals.

Group 18

Noble Gases

Group 2

Alkaline Earth Metals

Groups 3-12

Transition metals

nonmetals

brittle , dull, poor conductors of heat and electricity, and have much lower melting and boiling points

Atomic Number

The number of protons in the nucleus of an atom of an element

Mass Number

The total number of protons and neutrons in an atom's nucleus

Periodic table

A chart of all chemical elements currently known, organized by their properties.

Element

pure substance that consists entirely of one type of atom

atom

the smallest unit of an element that maintains the properties of that element

metal

Elements that are good conductors of heat and electric current.

nonmetal

elements that are generally gases or brittle dull-looking solids, they are poor conductors of heat and electricity

Periodic

happening at regular intervals

Periodic Law states that

properties of elements change periodically with the elements' atomic numbers