Question

Complete the following crossword puzzle across:
(1) An element with atomic number 12.
(2) Highly reactive and soft metal which imparts yellow color when subjected to flame and is kept in kerosene.
(3) Metal used in making cans and members of group 14.
(4) A lustrous non-metal which has 7 electrons in its outermost shell.
(5) The first element of the second period.
(6) An element which is used in making fluorescent bulbs and its second member of group 18 in the modern periodic table.
(7) A radioactive element which is the last member of the halogen family.
(8) Metal which is an important constituent of steel and forms rust when exposed to moist air.
(9) The first metalloid in modern periodic table whose fibers are used in making bullet-proof vests.

Answer 1

Hint: You should about the periodic table properly and about the s, p and d-block elements and their physical properties. Then you can easily answer the given statements accordingly. Now solve it.

Complete step by step answer:
We answer the given statement one by one as;
(1) With the help of the periodic table, we comes to know that the element with the atomic number 12 is magnesium (Mg)
(2) The Highly reactive and soft metal which imparts yellow color when subjected to flame and is kept in kerosene is sodium (Na).
(3) The Metal used in making cans and members of group 14 is tin (Ti).
(4) The lustrous non-metal which has 7 electrons in its outermost shell is iodine(I).
(5) The first element of the second period is lithium (Li).
(6) An element which is used in making fluorescent bulbs and its second member of group 18 in the modern periodic table is neon ( Ne).
(7) A radioactive element which is the last member of the halogen family is Astatine (As).
(8) Metal which is an important constituent of steel and forms rust when exposed to moist air is iron(Fe).
(9) The first metalloid in modern periodic table whose fibers are used in making bullet-proof vests is boron (B).

Note: The elements on the extreme left side of the periodic table are called as the s-block elements and the elements on the extreme right side of the periodic table are called as the p-block elements and the elements which are present in between the s and p-block elements are called as the d-block elements.