English
Maharashtra State BoardSSC (English Medium) 10th Standard

On moving from left to right in a periodic table, the size of the atom _______.

Advertisements
Advertisements

Question

On moving from left to right in a periodic table, the size of the atom _______.

Options

  • increases

  • decreases

  • decreases first and then increases

  • does not change

MCQ
Fill in the Blanks
Advertisements

Solution

On moving from left to right in a periodic table, the size of the atom decreases.

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 Part 1 [English] Standard 10 Maharashtra State Board
Chapter 2 Periodic Classication of Element
Choose the correct option. | Q 14

RELATED QUESTIONS

Why is the size of sodium is greater than magnesium?


Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?


Give reason for the following:

Argon atom is bigger than chlorine atom. 


Write a scientific reason.

Atomic radius goes on increasing down a group.


Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.


With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Atomic size increases from left to right across a period.


Supply the missing word from those in the brackets:
If an element has seven electrons in its outermost shell then it is likely to have the ______ (largest/ smallest) atomic size among all the elements in the same period.


The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer. 

The atomic size:


_______ is the distance between the nucleus of the atom and its outermost shell.


While going from top to bottom in a group the atomic radius _______.


Nanometer unit is used to measure atomic radius.


The size of an atom depends on the number of valence electrons.


Write information about the given atomic numbers in the table. 10, 20, 7.

Atomic Number Electronic configuration Group Period Element
10        
20        
7        

Elements have been arranged in the following sequence on the basis of their increasing atomic masses.

F, Na, Mg, Al, Si, P, S, Cl, Ar, K
  1.  Pick two sets of elements which have similar properties.
  2. The given sequence represents which law of classification of elements?

Atomic number of a few elements are given below
10, 20, 7, 14

  1. Identify the elements
  2. Identify the Group number of these elements in the Periodic Table
  3. Identify the Periods of these elements in the Periodic Table
  4. What would be the electronic configuration for each of these elements?
  5. Determine the valency of these elements

The diagram below shows part of the periodic table.

  1. Which elements would react together to form covalent compounds?
  2. Between the two elements W and Z, which will have a bigger atomic radius? Why?


Arrange the following as per instruction given in the bracket.

Mg, Cl, Na, S, Si (decreasing order of atomic size)


Arrange the following in order of increasing radii:

N, O, P

Explain your choice.


In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:

The element A would have ______ atomic size than B.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×