Question

Which of the following is an incorrect trend while moving to the right across a period in the periodic table?


The metallic character decreases
The acidic nature of oxides increases
The number of valence electrons increases
The ability to accept electrons decreases​

Answer 1

Answer :

"The ability to accept electrons decreases while moving to the right across a period in the periodic table" is the incorrect trend.

Explanation :

A] Metallic character :-

• Metallic characters decreases while moving to the right across a period in the periodic table.
• >78% of all known elements appear on the left hand side of the periodic table are metals.
• Elements of s block are metals while elements of p block are non-metals.

B] Acidic nature of oxides :-

• Acidic nature of oxides increases while moving to the right across a period in the periodic table because acidic nature of oxides in inversely proportional to the metallic character of the element.

C] Number of valence electrons :

• Number of valence electrons increases while moving to the right across a period in the periodic table because atomic number also increaeses.

D] Ability to accept electrons :

• The tendency of an atom in a chemical compound to attract shared lair of electrons to itself is called electronegativity.
• Electronegativity or ability to accept electron increases while moving to the right across a period in the periodic table$.$

Answer 2

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"The ability to accept electrons decreases while moving to the right across a period in the periodic table" is the incorrect trend."

Explanation :

A] Metallic character :-

• Metallic characters decreases while moving to the right across a period in the periodic table.
• >78% of all known elements appear on the left hand side of the periodic table are metals.
• Elements of s block are metals while elements of p block are non-metals.

B] Acidic nature of oxides :-

• Acidic nature of oxides increases while moving to the right across a period in the periodic table because acidic nature of oxides in inversely proportional to the metallic character of the element.

C] Number of valence electrons :

• Number of valence electrons increases while moving to the right across a period in the periodic table because atomic number also increaeses.

D] Ability to accept electrons :

• The tendency of an atom in a chemical compound to attract shared lair of electrons to itself is called electronegativity.
• Electronegativity or ability to accept electron increases while moving to the right across a period in the periodic table..

Hope it helps :)