Question 1

Paper 2Medium5 marks

Figure 1 shows the structural formula of bromomethane. Use the periodic table where needed.

CHHHBrA
(a)

Identify the element labelled A and state the period in which it is found.

[2]
(b)

Calculate the maximum number of electrons in the main energy level corresponding to the period of A.

[1]
(c)

Using your answer to (b), determine how many more electrons this main energy level can hold than the main energy level corresponding to carbon in Figure 1.

[2]

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