15 The formula ofaalt is xcia The X-ico in this sah has 30 protons. The metlXs A

Question

15 The formula ofaalt is xcia The X-ico in this sah has 30 protons. The metlXs A) Ni B) Zn C) Fe D) V E) A 16 Elements exhibit similar physical and chemical properties A) with similar chemical symbols B) with similar atornic masses C) in the same period of the perniodic table D) on opposite sides of the periodie table E) in the same group or famuly of the periodic table 17. An element on the supper top right side of the periodic table A) is either a metal or metalloid B) is definutely not a gaseous on-metal C) is neither a metalioid nor a non- meta D) is definitely a metai gas E) is none of the above 18 An element at the top left ade of the periodic table s on the bottons left side of dhe pariodic tald than element that A) peither a metal or metalloid 1B) less metalic C) "thermetalloid or ammenal a nos-netal D) definitely E) not a meta

Explanation / Answer

15. XCl2   -------> X^2+ +2Cl^-

      X^2+ ion contains 30 protons. so atomic number is 30. The 30 atomic number element is Zn

B. Zn

16. Same group element exhibts similar chmeical and physical properties.

E. in the same group or same family of the periodic table.

17.in the right side of the periodic table p-block elements are present. In the P- block elemets metals, nonmetals and mettoloids are present.

   C. neither nonmetaloid nor metal

18. in grup top to bottom metallic charecter is decreases.

B. less metallic

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