…........is the only liquid nonmetal element while .................. is the only liquid metal element.  - Bromine , Mercury, During the chemical reaction, magnesium (24Mg12) atom …… two electrons and changes into...... - Loss , positive ion , The outermost energy level of chlorine (35 Cl 17) atom contains …......electrons, while that of chlorine ion contains............... electrons.  - 7 , 8, Nonmetals are ………….........… conductors of electricity except ..............which is a good conductor of electricity.  - Graphite , 5. Elements can be classified according to their properties and electronic structure into .................. , ....................... and…………….......  - Metals , Nonmetals , noble gases ,

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