the no. of proton, neutron and electron in different isotopes of Si, the electron configuration of Si, the weighted average mass of Si, positron emission of Si-27, beta decay of Si-31, Lewis structure and shape of SiCl 4 , and the time required for the activity of Si-31 to decay from 16 µCi to 2µCi. Concept Introduction: Different isotopes of Si have different no. of protons, neutrons and electrons. Because of the different isotopes Si has a weighted average mass. Also isotopes with higher no. of neutrons are unstable hence they undergo positron emission and beta decay. To Determine: the no. of proton, neutron and electron in different isotopes of Si, the electron configuration of Si, the weighted average mass of Si, positron emission of Si-27, beta decay of Si-31, Lewis structure and shape of SiCl 4 , and the time required for the activity of Si-31 to decay from 16 µCi to 2µCi.

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Chapter 6, Problem 9CI

Interpretation Introduction

Interpretation: the no. of proton, neutron and electron in different isotopes of Si, the electron configuration of Si, the weighted average mass of Si, positron emission of Si-27, beta decay of Si-31, Lewis structure and shape of SiCl₄, and the time required for the activity of Si-31 to decay from 16 µCi to 2µCi.

Concept Introduction: Different isotopes of Si have different no. of protons, neutrons and electrons. Because of the different isotopes Si has a weighted average mass. Also isotopes with higher no. of neutrons are unstable hence they undergo positron emission and beta decay.

To Determine: the no. of proton, neutron and electron in different isotopes of Si, the electron configuration of Si, the weighted average mass of Si, positron emission of Si-27, beta decay of Si-31, Lewis structure and shape of SiCl₄, and the time required for the activity of Si-31 to decay from 16 µCi to 2µCi.

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