Advertisements
Advertisements
प्रश्न
Example for liquid metal is ______.
Advertisements
उत्तर
Example for liquid metal is Mercury
APPEARS IN
संबंधित प्रश्न
Write the electronic configuration of two elements X and Y whose atomic numbers are 20 and 17 respectively. Write the molecular formula of the compound formed when element X reacts with element Y. Draw the electron-dot structure of the product and also state the nature of the bond formed between both the elements.
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.
The following diagram shows a part of the periodic table containing first three periods in which five elements have been represented by the letters a, b, c, d and e (which are not their chemical symbols):
-
1 18 a 2 13 14 15 16 17 b c d e
(i) Select the letter which represents an alkali metal.
(ii) Select the letter which represents a nobles gas.
(iii) Select the letter which represents a halogen.
(iv) What type of bond is formed between a and e?
(v) What type of bond is formed between d and e?
In which block of the modern periodic table are the nonmetals found?
What property forms the basis of identification?
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 property will be common in group 1 elements?
Which of the following elements does not lose an electron easily?
An element with the atomic number 40 is placed in the period.
Which of the following metals have low melting and boiling point?
