Advertisements
Advertisements
प्रश्न
Noble gases belong to______ group of the periodic table.
उत्तर
Noble gases belong to 18th group of the periodic table.
APPEARS IN
संबंधित प्रश्न
What is meant by a period, in a periodic table?
State the term
The tabular arrangement of elements in horizontal rows and vertical columns _________
Name the cation and the anion in the salt – calcium sulphate
The d-block elements are called as _______ elements.
Position of A, B and C three elements is given in the table from the modern periodic table. Answer the following questions.
| Periods | Group 2 | Group 17 |
| 2 | ----- | A |
| 3 | B | ----- |
| 4 | ----- | C |
- What is A element metal or nonmetal?
- Which is the outermost orbit of element B?
- Identify C element and it's physical state.
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has a similar structure to diamond.
An element has the atomic number 12.
- Write the electric configuration.
- To which group and period does it belong.
Explain giving reason why although the nuclear charge in atoms increases in moving from left to right in a period as well as in moving from top to bottom in a group in the Modern periodic table, but the size of the atoms does not vary similarly in both situations.
Define periods of modern periodic table.
