Home
Class 10
CHEMISTRY
An element X belongs to group 2 and anot...

An element `X` belongs to group 2 and another element `Y` belongs to group 15 of the periodic table:
(a) What is the number of valence electrons in `X`? (b) What is the valency of `X`?
(c) What is the number of valence electrons in `Y`? (d) What is the valency of `Y`?
Explain how you have arrived at your answers.

Text Solution

Verified by Experts

NA
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS

    LAKHMIR SINGH & MANJIT KAUR|Exercise LONG ANSWER TYPE|3 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    LAKHMIR SINGH & MANJIT KAUR|Exercise HOTS_TYPE|1 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    LAKHMIR SINGH & MANJIT KAUR|Exercise Exercise|215 Videos

  • METALS AND NON-METALS

    LAKHMIR SINGH & MANJIT KAUR|Exercise Short Answer Type Qustions|1 Videos

  • TEST PAPER 1

    LAKHMIR SINGH & MANJIT KAUR|Exercise Section B|4 Videos

Similar Questions

Explore conceptually related problems

The number of valence electrons in is ""_(15)^(31)X is

(a) What is the number of valence electrons in the atoms of first element in a period? (b) What is the usual number of valence electrons in the atoms of the last element in a period?

An element X belongs to 3rd period and group 2 of the periodic table. State: (a) number of valence electrons (b) valency (c) metal or non-metal (d) name of the element

What is the number of unpaired electrons present in the valency shell of group elements?

What is the number of valence electrons in the atom of an element A having atomic number 17 ? Name the valence shell of this atom.

What is the number of valence electrons in the atom of an element A having atomic number 20? Name the valence shell of this atom.

An element X belongs to group 17 and third period of the periodic table Write electronic configuration of the element. What is its valency?