English

Give the Symbol and Valency of the Following Element and Radical. Potassium

Advertisements
Advertisements

Question

Give the symbol and valency of the following element and radical.

Potassium

Chart
Advertisements

Solution

Element/Radical Symbol Valency
Potassium K one
shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Atomic Structure - Exercise

APPEARS IN

RELATED QUESTIONS

Consider the following elements:
Ca, Cl, Na, I, Li, Ba, Sr, K, Br

Separate these elements into three groups (families) of similar properties. State one property in each case on the basis of which you have made your choice.


The atomic numbers of the three elements X, Y and Z are 2, 6 and 10 respectively.
(i) Which two elements belong to the same group?
(ii) Which two elements belong to the same period?
Give reasons for your choice.

 


An element E has following electronic configuration:

K

L

M

2

8

6

(a) To which group of the periodic table does element E belong?

(b) To which period of the periodic table does element E belong?

(c) State the number of valence electrons present in element E.

(d) State the valency of the element E.


Give the symbol and valency of the following element and radical.

Nitrogen [Nitride]


Give the symbol and valency of the following element and radical.

Carbonate


The groups 1 and 2 constitute the ______ block.


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
  1. What is an element metal or nonmetal?
  2. Which is the outermost orbit of element B?
  3. Identify C element and it's physical state.

Give the criteria on the basis of which elements are placed (i) in a group and (ii) in a period in the modern periodic table. The atomic number of an element is 16. According to the criteria, in which group and period it should be placed?


Define groups of modern periodic table.


Answer the following in respect of element \[\ce{_16^32S}\].

  1. Give its electronic configuration.
  2. To which group and period does it belon?
  3. What is its valency?
  4. Is it a metal or a non-metal?
  5. Is it a reducing agent or an oxidising agent?
  6. Give its formula with hydrogen.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×