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Study the table below and answer the questions that follow. The letters do not represents the actual symbols of the elements

Study the table below and answer the questions that follow. The letters do not represents the actual symbols of the elements.

Select elements found in:
(a) (i) The same group
(ii) Period three
(iii) What is the family name given to the group to which elements identified in a(i) above belongs.
(b) How does the atomic radius of element B and A compare. Explain.
(c) State two industrial use of element B.
(d) With reason, compare the reactivity of C and D.
(e) Write the formula of compound formed when A and D react.
(f) What type of bond is formed when element E react with oxygen. Give a reason for your answer.

Answers

a) i) A and E or C and D

ii) A, B and C

iii) Alkaline earth metals if A and E or
halogens if C and D

b) Atomic radius of B is smaller than that of A. B has
stronger nuclear charge due to more protons hence
pull the energy levels closer to the nucleus
compared to A which has less protons

c) - making aircrafts parts since its light
- making electrical cables since it is a
better conductor of electricity
- extraction of metals like iron

d) D is more reactive than C, D has smaller atomic
radius hence can attract the incoming electron more
easily compared to C which has a larger atomic radius

e) AD₂

f) Ionic bond
There is complete transfer of electrons from E to
oxygen

maurice.mutuku answered the question on September 18, 2019 at 09:01

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