8. Which is a structural formula for the molecule CaH6? a) CaHs b) CH2 c) CHs d)

Question

8. Which is a structural formula for the molecule CaH6? a) CaHs b) CH2 c) CHs d) What is the atomic number of nitrogen? a) 7 b) 14.01 c) 28 d) 58.69 9. 10. Which group on the periodic table contains the halogens? a) 1 b) 2 c) 17 d) 18 11. Which is a difference between molecular compounds and ionic compounds? Molecular compounds typically form between a metal and a nonmetal, while io compounds typically form between nonmetals Molecular compounds result from the transfer of electrons between ato ions, while ionic compounds result from the sharing of electrons between neut atoms. a) ms to f b) c) Molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges d) Molecular compounds have high melting points and high bolling points, while compounds are typically found as gases or low-melting solids and low-boiling liquids. 12. What is the name for a positively charged ion? a) Cation b) Anion c) Dogion d) Protion

Explanation / Answer

8. d

It's a cyclic alkane compound called cyclopropane.

9. a atomic number of Nitrogen is 7 since there are 7 protonso.

10.c The CHLORINE is Present in P Block of the periodic table. The atomic number is 17.

The electronic configuration is 1S2 2S2 2P6 3S2 3P5.

Hence, it is belonging to 17th group.

11.c. The molecular compounds are formed by mutual sharing of electrons. For example methane.

But ionic compound are formed by loss or gain of electrostatic.

12.a The cation is positively charged atom. It is formed by loss of electronic.

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