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

      

The grid below represents part of the periodic table. The letters do not represent the actual symbols of the elements. Study it and answer the questions that follow:
Q2210152019842.pngQ2210152019843.png
(a) Explain why element L appears in two different groups in the grid above
(b) State the name of the chemical family to which P and Q belong
(c) Write the formula of the compound formed between P and V
(d) Compare the melting points of Q and S. Explain
(e) Identify an element whose oxide dissolves in both acids and alkalis
(f) Write the equation for the burning of T in excess air
(g) Using dots (•) and cross (x) to represent electrons, draw a diagram to illustrate bonding in the sulphide of Q
(h) State one use of element X

  

Answers


Maurice
a) Group 1 – Because it has 1 electron in its outermost energy level.
Group 7 – It requires 1 electron to fill its outermost energy level.

b) Alkaline earth metals

c) PV2

d) Q has higher m.p than J. Q has a giant metallic structure and strong metallic bonds.
While J has molecular structure and Van der Waals forces which are easy to break.

e) R.

f) T(s) + O2(g)------>TO2(g)

g)Q2210152019851.png


h) – Filling electric light bulb
maurice.mutuku answered the question on October 15, 2019 at 05:53


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