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THE PERIODIC TABLE
17
calcium: I have 20 protons.
hydrogen : am not really an metal, but since I have only 1 electron I behave like them.
alkali metals : The name given for group 1
oxygen : I am a gas with 8 protons and 8 neutrons.
lose : metals _______ electrons to become stable
neon : used in advertising sign boards
calcium : I have 20 neutrons and am found in your teeth and bones.
increases : melting point and boiling point of halogens ___________ as we go down the group
fluorine : the most reactive halogen
potassium : I am the first element in the fourth period used in making fertilizer.
gain : non-metals ______ electrons to become stable
chlorine : My atomic mass is 35.5
carbon : I am the head of the carbon family known as the “basis of life”.with atomic number of 6
nitrogen : I make up 78% of the air and am found in the 15th group.
sodium : I am a silvery white metal used to make salt.
helium : I am a noble gas with 2 electrons.
bromine : I am the only element in the halide family that is a liquid.
eight : noble gases have _______ electrons in their outer shell except for helium
decreases : Reactivity ___________ as we go down the group 7
THE PERIODIC TABLE
Across:4. | am not really an metal, but since I have only 1 electron I behave like them. | 7. | I am a silvery white metal used to make salt. | 9. | noble gases have _______ electrons in their outer shell except for helium | 10. | non-metals ______ electrons to become stable | 12. | I have 20 protons. | 13. | I am the first element in the fourth period used in making fertilizer. | 14. | I am a gas with 8 protons and 8 neutrons. | 17. | The name given for group 1 |
| | Down:1. | the most reactive halogen | 2. | metals _______ electrons to become stable | 3. | melting point and boiling point of halogens ___________ as we go down the group | 5. | I make up 78% of the air and am found in the 15th group. | 6. | I am a noble gas with 2 electrons. | 8. | Reactivity ___________ as we go down the group 7 | 11. | I am the only element in the halide family that is a liquid. | 15. | I am the head of the carbon family known as the “basis of life”.with atomic number of 6 | 16. | used in advertising sign boards |
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© 2013
PuzzleFast.com, Noncommercial Use Only
THE PERIODIC TABLE
Across:4. | am not really an metal, but since I have only 1 electron I behave like them. | 7. | I am a silvery white metal used to make salt. | 9. | noble gases have _______ electrons in their outer shell except for helium | 10. | non-metals ______ electrons to become stable | 12. | I have 20 protons. | 13. | I am the first element in the fourth period used in making fertilizer. | 14. | I am a gas with 8 protons and 8 neutrons. | 17. | The name given for group 1 |
| | Down:1. | the most reactive halogen | 2. | metals _______ electrons to become stable | 3. | melting point and boiling point of halogens ___________ as we go down the group | 5. | I make up 78% of the air and am found in the 15th group. | 6. | I am a noble gas with 2 electrons. | 8. | Reactivity ___________ as we go down the group 7 | 11. | I am the only element in the halide family that is a liquid. | 15. | I am the head of the carbon family known as the “basis of life”.with atomic number of 6 | 16. | used in advertising sign boards |
| |
© 2013
PuzzleFast.com, Noncommercial Use Only