Question

metal with a valency 2. Eleme
uld have the least
Element Y is
th period
d H, what type
re the molecular
[2013]
(c) Element X is a metal with a v
a nonmetal with a valency 3.
(i) Write an equation to show how Yfo
(i) If Y is a diatomic gas, write an e
the direct combination of X and Y +
compound.
how Y forms an ion.
ite an equation for
nd Y to form a
(2015)
op to bottom are Be, Mg,
an atom in the
orm an anion
s will form ions most
26. The metals of group 2 from top to bottom
Ca, Sr and Ba.
(a) Which one of these elements will form i
readily, and why?
(b) State the common feature in the ele
configuration of all these elements.
- Answer the
h Z belongs
ectronic
[2015]
drogen
Rewrite the following sentences using the correct symbol
(greater than) or < (less than) in the blanks given:
(a) The ionization potential of potassium is
that of sodium
​

Answer 1

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