English
Maharashtra State BoardSSC (English Medium) 10th Standard

Write an Explanation. Electropositivity

Advertisements
Advertisements

Question

Write an Explanation.

Electropositivity

Explain
Advertisements

Solution

Electropositivity is the tendency of an atom to lose one or more electrons and form a positive ion (cation). Elements that easily donate electrons are called electropositive elements. Electropositivity increases down a group due to an increase in atomic size, and decreases across a period due to an increasing nuclear charge.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Periodic Classication of Element - Write an Explanation

APPEARS IN

SCERT Maharashtra Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
Chapter 2 Periodic Classication of Element
Write an Explanation | Q 4

RELATED QUESTIONS

Arrange the following as per the instruction given in the bracket.

Cs, Na, Li, K, Rb (increasing order of metallic character).


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 B would have ______ metallic character than A.


Is is metal or non-metal?


Answer the following in respect of element `31/15 P `

Is it a metal or non - metal


An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.

Is it a metal or a non-metal?


How does the chemical reactivity of 

alkali metals vary?


Which has the maximum metallic character Na, Li or K?


A metal M forms as oxide having the formula M2O3. It belongs to third period. Write the atomic number and valency of the metal.


Explain
Group 17 elements are non-metals, while group 1 elements are metals.


Select the correct answer
Configuration of an element is 2, 8, 1. Which of the following statement is true?


Supply the missing word from the words given in brackets.
If an element has one electron in its outermost energy level, then it is likely to be _ (metallic, non metallic)


Within a group, where would you expect to find the element with the greatest metallic character.


The tendency of an element to form anion is the ______ character of that element.


The metallic character of the element decreases moving across a period from left to the right.


Write an Explanation.

Electronegativity


3, 1, 2 electrons are in valence shells of X, Y, Z elements. From this information, state the group in which they belong and write their valencies.


An element has atomic number 17. To which group, the period does it belong? It is metal or non-metal? 


Metals are good ______ because they are electron ______.


The given table shows elements with the same number of electrons in its valence shell.

Elements A B C
m.p. 63.0 180.0 97.0

Arrange them in order of increasing metallic character.


A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).

Boron, Aluminium, Gallium, Indium, Thallium

Answer the following question in relation to the above group of elements:

Will the elements in the group to the right of this boron group be more metallic or less metallic in character? Justify your answer.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×