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Match it! Select the correct answer from the pull down...Good luck!
The dense, positivly charged center is called the __________.
proton
7
3
electrons
nucleus
1
alkali
halogens
To which group does sodium belong?
proton
7
3
electrons
nucleus
1
alkali
halogens
How many electrons does nitrogen have?
proton
7
3
electrons
nucleus
1
alkali
halogens
Which is the most reactive group of metals on the periodic table?
proton
7
3
electrons
nucleus
1
alkali
halogens
The outer shells have a negative charge due to these particles.
proton
7
3
electrons
nucleus
1
alkali
halogens
This particle is responsible for the positive charge of the nucleus.
proton
7
3
electrons
nucleus
1
alkali
halogens
To which period does magnesium belong?
proton
7
3
electrons
nucleus
1
alkali
halogens
Which is the most reactive group of nonmetals on the periodic table?
proton
7
3
electrons
nucleus
1
alkali
halogens
Check it!