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प्रश्न
In which block of the modern periodic table are the nonmetals found?
पर्याय
s-block
p-block
d-block
f-block
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उत्तर
In p-block of the modern periodic table are the nonmetals found.
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संबंधित प्रश्न
An element Y is in second period and group 16 of the periodic table:
(i) Is it a metal or non-metal?
(ii) What is the number of valence electrons in its atom?
(iii) What is its valency?
(iv) What is the name of the element?
(v) What will be the formula of the compound formed by Y with sodium?
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?
An element X from group 2 of the periodic table reacts with an element Y from group 17 to form a compound.
(a) What is the nature of the compound formed?
(b) State whether the compound formed will conduct electricity or not.
(c) Give the formula of the compound formed.
(d) What is the valency of element X?
(e) How many electrons are there in the outermost shell of an atom of element Y?
The elements A, B and C belong to groups 1, 14, and 17 respectively of the periodic table.
(a) Which two elements will form a covalent compound?
(b) Which two elements will form an ionic compound?
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 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.
What was the basis of the earliest attempts made for classification and grouping of elements?
Give a reason why elements need to be properly classified.
State whether true or false. If false, correct the statement.
Metals can gain electrons.
Which of the following have inert gases 2 electrons in the outermost shell.
An atom of an element has the electronic configuration 2,8,2. To which group does it belong?
Which of the following hydroxides is most basic?
The elements of group 16 are called ______
Which of the following property will be common in group 1 elements?
Which of the following elements does not lose an electron easily?
What type of oxide would Eka– aluminium form?
Which of the following metals have low melting and boiling point?
Complete the following triads by inserting the missing elements.
Ca, ______, Ba
The atomic number of an element 'X' is 11.
- Write the electronic configuration of X and find its valency.
- Write the formula and nature of its oxide.
