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Transcript
Chemistry 11
Unit 5 / IB Topics 3 and 13
Periodic Table Puzzle
The code letters A to Z have been assigned to represent the first 26 representative elements in the
Periodic Table. The letters do not relate to the actual chemical symbols for these elements.
Your challenge is to put the code letters in the correct boxes in the Periodic Table, based on the
properties given below.
Group /
Period
1
2
13
(3)
14
(4)
15
(5)
16
(6)
17
(7)
18
(0)
1
2
3
4
1.
Each of the following eight groups has elements with the same number of valence electrons:
Z R D
S I F P
J X B E
L H T
Q K A
W O V
Y M C
N U G
2.
U combines with a maximum of four hydrogen atoms.
3.
NA2 is the formula of an oxide.
4.
E is an inert element.
5.
S reacts vigorously with water to produce hydrogen gas and an alkaline substance.
6.
C combines with five chlorine atoms.
7.
L is an alkaline earth metal.
8.
O is a yellow-green halogen.
9.
The first ionization energy of T is more than the first ionization energy of H, less than that of L.
10.
The oxide of M is molecular covalent.
11.
Q’s melting point is higher than A’s melting point.
12.
W is a liquid and O is a gas at 101 kPa and 298 K.
13.
Atom X has 2 protons.
14.
The relative atomic mass of C is greater than the relative atomic mass of N but less than that
of E.
Chemistry 11
Unit 5 / IB Topics 3 and 13
15.
The salt SO has a smaller molecular mass than IO.
16.
D has the smallest relative atomic mass in its group.
17.
V boils at a lower temperature than O.
18.
The first ionization energy for R is exceptionally less than the first ionization of T.
19.
The atomic size of P is smaller than the atomic size of S and I.
20.
U is the least metallic element in its group.
21.
F is a colourless gas.
22.
The symbol of the most abundant isotope of element B is
23.
Q is more closely related to A than K is.
24.
K is less electronegative than V but more electronegative than M.
25.
The electrons of atom J are distributed over four values of n in the ground state.
26.
Y is more metallic than M or C.
20
10B.