Problem

Some of the isotopes of silicon are listed in the following table:isotope% Natural Abundan...

Some of the isotopes of silicon are listed in the following table:

isotope	% Natural Abundance	Atomic Mass	Half-Life (radioactive)	Radiation
		26.987	4.9 s	Positron
	92.23	27.977	Stable	None
	4.683	28.976	Stable	None
	30.087	29.974	Stable	None
		30.975	2.6 h	Beta

a. In the following table, indicate the number of protons, neutrons, and electrons for each isotope listed:

isotope	number of protons	number of neutrons	number of Electrons

b. What are the electron configuration and the abbreviated electron configuration of silicon?
c. Calculate the atomic mass for silicon using the isotopes that have a natural abundance.
d. Write the balanced nuclear equations for the positron emission of Si-27 and the beta decay of Si-31.
e. Draw the electron-dot formula and predict the shape of SiCl4.
f. How many hours are needed for a sample of Si-31 with an activity of 16 μCi to decay to 2.0 μCi?