Which statements about the trends across a period of the Periodic Table are correct?
1- Aluminium is more metallic than sodium.
2- Beryllium is more metallic than carbon.
3- Boron is more metallic than lithium.
4- Magnesium is more metallic than silicon.
1 )
1 and 2
2 )
1 and 3
2 and 4
4 )
3 and 4
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