English
Maharashtra State BoardSSC (English Medium) 10th Standard

Which among the following is the largest element? - Science and Technology 1

Advertisements
Advertisements

Question

Which among the following is the largest element?

Options

  • Na

  • Mg

  • K

  • Ca

MCQ
Advertisements

Solution

K

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Periodic Classication of Element - Choose the correct option.

APPEARS IN

SCERT Maharashtra Science and Technology 1 [English] 10 Standard SSC
Chapter 2 Periodic Classication of Element
Choose the correct option. | Q 11

RELATED QUESTIONS

An element has its electron configuration as 2, 8, 2. Now answer the following question.
a. What is the atomic number of this element?
b. What is the group of this element?
c. To which period does this element belong?
d. With which of the following elements would this element resemble? (Atomic numbers are given in the brackets)
N(7), Be(4), Ar(18), Cl(17)


Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
3Li, 14Si, 2He, 11Na, 15P Which of these elements belong to be period 3?


Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

 6C, 3Li, 9F, 7N, 8O Which of the above elements has the highest nonmetallic character?


An element has its electron configuration as 2,8,2. Now answer the following questions.
i. What is the atomic number of this element?
ii. What is the valency of this element?
iii. What is the group of this element?
iv. To which period does this element belong?
v. With which of the following elements would this element resemble?

`_7N ,  _4Be  ,  _18Ar  , _17CL`


Which of this element belong to the period 3? Write their electronic configuration

`3^(Li) , 14^(Si) , 2^(He) , 15^(P)`


An element has its electron configuration as 2, 8, 2. Now answer the following question. 

What is the atomic number of this element?


An element has its electron configuration as 2, 8, 2. Now answer the following question. 

With which of the following elements would this element resemble?
(Atomic numbers are given in the brackets)
N(7), Be(4), Ar(18), Cl(17)


Find the odd one out and give its explanation.


Write the name of an element having electronic configuration 2,8,2.


The number of electrons in the outermost shell of an atom determines the _______.


The valency of the elements in group 2 is 1.


The elements lithium and beryllium are in the same period because their valencies are similar.


The number of shells decreases in a group from top to bottom.


In group 2, beryllium and calcium elements, calcium is more electropositive element than beryllium.


Complete the following chart.

Shell n 2n2 Electron holding
capacity
K ______ 2 × 12 2
L 2 ______ 8
______ 3 2 × 32 18
N 4 2 × 42 ______

Find the period in which these elements can be placed.

4Be, 17Cl, 2He, 13Al


Identify periods of elements and blocks of elements from given electronic configuration?

  1. 2, 8, 2
  2. 2, 8, 7
  3. 2, 1

Observe the given chart and answer the questions given below.

Element A B C D
Electronic configuration 2, 1 2, 8 2, 8, 1 2, 8, 8
  1. Which elements are in the same row?
  2. Which elements have the same column?
  3. Which elements are in the 18th column?
  4. Which element is more reactive among A and C?
  5. Which of the following elements A or B will form compounds?

Observe the periodic table given below and write the answers of the questions.

  1. Write the name and valencies of the elements in 3rd row.
  2. Classify the elements in this row as metal, nonmetal and metalloids.
  3. Which block does nonmetals belong to?
  4. Write name of any two metalloid elements.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×