Advertisements
Advertisements
प्रश्न
If the distance between two Cl atoms in a Cl2 molecule is 1.98Å, then the radius of the Cl atom is ______.
उत्तर
If the distance between two Cl atoms in a Cl2 molecule is 1.98Å, then the radius of the Cl atom is 0.99 Å.
APPEARS IN
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 element X combines with oxygen to form an oxide XO. This oxide is electrically conducting.
(a) How many electrons would be there in the outermost shell of the element X?
(b) To which group of the periodic tables does the element X belong?
(c) Write the formula of the compound formed when X reacts with chlorine.
Write the name.
The atom having smallest atomic radius from group 1.
The basis of the classifications proposed by Dobereiner, Newlands and Mendeleev was ______.
Which of the following have inert gases 2 electrons in the outermost shell.
Among the given species A–, A+, and A, the smallest one in size is ______.
An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. Write the formula of the compound formed when X reacts with chlorine.
Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al
Complete the following triads by inserting the missing elements.
Ca, ______, Ba
How are elements grouped into various families in the periodic table?
