Advertisements
Advertisements
प्रश्न
How does the electropositive character of elements change on going down in a group of the periodic table?
उत्तर
The electropositive character of the elements increases on going down in a group of the periodic table.
APPEARS IN
संबंधित प्रश्न
An element 'M' with electronic configuration (2, 8, 2) combines separately with (NO3)–, (SO4)2– and (PO4)3– radicals. Write the formula of the three compounds so formed. To which group and period of the Modern Periodic Table does the element 'M' belong? Will 'M' form covalent or ionic compounds? Give reason to justify your answer.
Write the number of horizontal rows in the modern periodic table. What are these rows called?
Use the letters only written in the Periodic Table given below to answer the questions that Follow :
1) State the number of valence electrons in atom J.
2) Which element shown forms ions with a single negative charge?
3)Which metallic element is more reactive than R?
4) Which element has its electrons arranged in four shells?
An element Z has atomic number 16. Answer the following questions on Z:
1) State the period and group to which Z belongs
2) Is Z a metal or a non-metal?
3) State the formula between Z and hydrogen
4) What kind of a compound is this?
Name the element which is in first group and third period.
How do electronic configurations of elements change in second period of periodic table with increase in atomic numbers?
How does the atomic size vary on going down from top to bottom in a group of the periodic table? Why does it vary this way?
Why sodium element of group 1 and chlorine element of group 17 both have valency 1?
The elements of one short period of the periodic table are given below in order from left to right:
| Li | Be | B | C | O | F | Ne |
To which period do these elements belong?
The electronic configuration of an element is 2, 8, 4. State it:
group and period in the Modern Periodic Table.
