Advertisements
Advertisements
प्रश्न
Fill in the blank in the following statement:
In going across a period (right to left) in periodic table, the atomic size of the atom ...............
उत्तर
On moving across a period (right to left) in the periodic table, the atomic size of an atom increases.
APPEARS IN
संबंधित प्रश्न
Which element has a total of three shells, with four electrons in its valence shell?
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is ______.
Name the element which is in first group and third period.
How does the electropositive character of elements change on going down in a group of the periodic table?
Which of the following set of elements is written correctly in the order of their increasing metallic character?
(a) Mg, Al, Si
(b) C, O, N
(c) Na, Li, K
(d) Be, Mg, Ca
Complete the following sentences
The similarities in the properties of a group of elements are because they have the same …………………
Chorine in the periodic table is surrounded by the elements with atomic number 9, 16, 18 and 35.
Which of these have physical and chemical properties resembling chlorine.
Study the extract of the Periodic Table given below and answer the questions that follow. Give the alphabet corresponding to the element in question. DO NOT repeat an element. 
Which is an inert gas?
Select the correct answer
Number of shells in potassium are
Give a reason for the following:
A transition from metallic to non-metallic elements is seen on moving from left to right in a period of the periodic table.
