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Puzzle 20140323738148

a crossword puzzle by
PuzzleFast Instant Puzzle Maker

Puzzle URL

https://www.puzzlefast.com/en/puzzles/20140323738148

I love crosswords and word searches, but
I also need ONLINE MATH PRACTICE!

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					1	2
		3
				4
										5
6
7

							8	9

Across:

1.	all the elements can be found in the _____________ .
7.	the total amount of neutron and proton is called ______ .
8.	the middle of an atom is call a _______ .

Down:

2.	_______ is a pure chemical substance
3.	have the same number of proton but different number of neutron
4.	what does 'NA' stands for ( use periodic table )
5.	has a maximum of 4 number of _______ .
6.	atom is the basic unit of ______ .
9.	found only outside and atom

© 2014 PuzzleFast.com, Noncommercial Use Only

1

P

2

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D

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3

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4

S

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O

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M

5

S

6

M

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D

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H

7

A

T

O

M

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C

N

U

M

B

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P

U

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M

8

N

9

E

C

L

E

U

S

E

L

S

R

E

C

T

R

O

N

Across:

1.	all the elements can be found in the _____________ .
7.	the total amount of neutron and proton is called ______ .
8.	the middle of an atom is call a _______ .

Down:

2.	_______ is a pure chemical substance
3.	have the same number of proton but different number of neutron
4.	what does 'NA' stands for ( use periodic table )
5.	has a maximum of 4 number of _______ .
6.	atom is the basic unit of ______ .
9.	found only outside and atom

© 2014 PuzzleFast.com, Noncommercial Use Only