mrs. larosa some images are from 2008

Mrs. LaRosa

Some images are from www.chem4kids.com

www.middleschoolscience.com 2008

Periods 1)____________________________

2)_____________________________________

_____________________________

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1

2

3

4

5

6

7

Groups or Families

•Each column is called a 3)_______________

•Each element in a group has the 4)__________ number of electrons in their outer orbital, also known as 5)_________ ________ or 6)____________.

Except for He, it has 2 electrons

•The electrons in the outer shell are called 7)”_____________ electrons”

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Families on the Periodic TableElements on the periodic table can be

grouped into families bases on their 8)________________properties.

Each family has a 9)______________ _____________to differentiate it from the other families in the periodic table.

Elements in each family 10)___________ differently

with other elements.

ALKALI METALSGroup 1Hydrogen is (11)________ a member,

it is a (12)_________________(13)_____ electron in the outer shellSoft and silvery metals(14)__________ reactive, esp. with

waterConduct electricity

Image: http://www.learner.org/interactives/periodic/groups2.html

ALKALINE EARTH METALSGroup 215)_______electrons

in the outer shellWhite and

malleableReactive, but

16)______________ than Alkali metalsConduct electricity

TRANSITION METALSGroups in the middle

17)_______ conductors of heat and electricity.

Some are used for jewelry.

The transition metals are able to put up to (18)______ electrons in their second to last shell.

Can bond with many elements in a variety of shapes.

BORON FAMILY Group 319)_____electrons

in the outer shell

Most are 20)______________

Boron is a

21)_______________

Rare Earth MetalsSome are

22)____________

The rare earths are silver, silvery-white, or gray metals.

Conduct electricity

CARBON FAMILY Group 423)_______electron

s in the outer shell

Contains metals, metalloids, and a non-metal 24)____________ (C)

NITROGEN FAMILY Group 525)______ electrons

in the outer shell

Can 26)_____________ electrons to form compounds

Contains metals, metalloids, and non-metals

OXYGEN FAMILY Group 627)____

electrons in the outer shell

Contains metals, metalloids, and non-metals

28)_____________

Halogens Group 729)____ electrons

in the outer shell

All are 30)______________

31)______ reactive are often bonded with elements from 32)____________

Noble GasesGroup 8Exist as 33)________

Non-metals

34)____ electrons in the outer shell =35) _________

Helium (He) has only36) ______ electrons in

the outer shell = 38)________

39)_______ reactive with other elements

Determine the number of shells and the number of valence electrons for:

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Determine the number of shells and the number of valence electrons for:

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