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
Write the names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic character of elements vary on moving down a vertical column? How does the size of atomic radius vary on moving left to right in a horizontal row? Give reason in support of your answer in the above two cases.
What is meant by a period, in a periodic table?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
State the term
The tabular arrangement of elements in horizontal rows and vertical columns _________
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
Write a short note.
Structure of the modern periodic table.
What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?
How many periods and groups are there in the modern periodic table?
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
Which of these belong to the same period?
| Element | A | B | C |
| Atomic number | 2 | 10 | 5 |
