The grid below represents part of the periodic table. The letters do not represent actual symbols of the elements. Study it and answer the questions...

The grid below represents part of the periodic table. The letters do not represent actual symbols of the elements. Study it and answer the questions that follow:-

(a) What type of bond would you expect in the compound formed between H and F. Explain
(b) (i) Which of the elements J and M will have a greater atomic radius? Explain
(ii) Elements F and N are in the same group of periodic table. How do their atomic
radius compare? Explain
(c) An element W has atomic number 15. Indicate the position it would occupy in the table above
(d) What is the name given to elements X – Z?
(e) Why is J used in electric cables where Q is not
(f) P and J are termed as metalloids. What does the term metalloid mean?
(g) How would you expect the reactivity of H and M to compare? Explain

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(a) ionic or electrovalent
F is metal and H is non metal.

b) (i) J atomic radius decrease a long a period from left to right nuclear change attraction
increase positive nuclear change increase due to increase in the number of protons.
(ii) F has a smaller atomic radius than N level down the grown.

c) W is group 5 period 3

d) Transition metals.

e) J has 3 valence electrons which and delocalized whole Q has only 2 electron : hence J
has high electrical conductivity due to high number of delocalized electron.

f) The reactions have both metallic and non metal properties

g) H is more reactive than M non metal reactivity increase up the group due to decrease in electro negativity down the group.

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maurice.mutuku answered the question on October 15, 2019 at 10:19

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