Advertisements
Advertisements
प्रश्न
Give the symbol and valency of the following element and radical.
Hydroxide
Advertisements
उत्तर
| Element/Radical | Symbol | Valency |
| Hydroxide | OH | one |
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word:
The horizontal rows in a periodic table are called ...............
What is the usual number of valence electrons in the atoms of the last element in a period?
State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
Which of the following are the correct characteristics of isotopes of an element?
(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
Arrange the elements of second and third periods in increasing order of their atomic size.
Third Period.
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
What will be the formula of its phosphate?
State the number of elements in Period 1 of the Periodic Table.
Which of the following statements about the Modern periodic table is correct?
Complete the following flow chart.
The inert gas which lies in the third period is ______
