Question

6 Use the information given in the table below
to answer the questions below concerning the
elements Q, R, S, T and X.
Element Proton Nucleon Electronic
number number structure
Q
3
7
2,1
20
40
2,8,8,2
S
18
40
2,8,8
x - 70
8
18
2,6
Х
19
39
2,8,8,1
a Which element has 22 neutrons in each atom?
b Which element is a noble gas?
c Which two elements form ions with the same
electronic structure as neon?
d Which two elements are in the same group of
the Periodic Table and which group is this?
e Place the elements in the table into the periods
in which they belong.
f Which is the most reactive metal element shown
in the table?
g Which of the elements is calcium?​

Answer 1

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