Advertisements
Advertisements
Question
The molecular formula of the chloride of element X is XCl. This compound is a solid having a high melting point. Which of the following elements be present in the same group as X.
Options
Na
Mg
Al
Si
Advertisements
Solution
Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. An element to be present in the same group as X is Na.
APPEARS IN
RELATED QUESTIONS
Rewrite the following statement after correction, if necessary:
Periods are the horizontal rows of elements.
Why do we classify elements?
As element X has mass number 40 and contains 21 neutrons in its atom. To which group of the periodic table does it belong?
An atom has the electron structure of 2, 7.
(a) What is the atomic number of this atom?
(b) To which of the following would it be chemically similar?
7N, 15P, 17Cl, 18Ar
(c) Why would you expect it to be similar?
A metal X is in the first group of the periodic table. What will be the formula of its oxide?
An element A from group 14 of the periodic table combines with an element B from group 16.
(i) What type of chemical bond is formed?
(ii) Give the formula of the compound formed.
The elements Li, Na and K, each having one valence electron, are in period 2, 3 and 4 respectively of modern periodic table.
(i) In which group of the periodic table should they be ?
(ii) Which one of them is least reactive ?
(iii) Which one of them has the largest atomic radius ? Give reason in justify your answer in each case.
The number of electrons in the outermost shell of alkali metals is ______.
(a) How is possible valency of an element determined from the electronic configuration of its atom ?
(b) Determine the valency of an element X whose atomic number is 15.
Why was this basis of classification discarded for future classification of elements?
______ group contains the member of the halogen family.
Which of the following have inert gases 2 electrons in the outermost shell.
What property forms the basis of identification?
Consider the following elements 20Ca, 8Or 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be in group 16 of the Periodic Table?
Which one of the following statements is not correct about the trends in the properties of the elements of a group on going down in a group?
Which of the following is a transition element?
Which of the following elements does not lose an electron easily?
Which of the following metals have low melting and boiling point?
Element 'X' forms an oxide with the formula X2O3 which is a solid with high melting point. ‘X’ would most likely be placed in the group of the Periodic Table as:
