define the following terms
1.valency
2.atomic size
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hy
here is your answer
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1.valency:- an element is the measure of its combining power or the combining capacity of an atom with other atoms when it formed chemical compounds and molecules valency of an atom is equal to the number of electrons gained lost or shared by the atom to achieve the nearest noble gas configuration.
2. atomic size:- atomic size or atomic radius is the distance between the centre of the nucleus and the outermost shell of an isolated atom.
I hope you understand
=====================
here is your answer
=================
1.valency:- an element is the measure of its combining power or the combining capacity of an atom with other atoms when it formed chemical compounds and molecules valency of an atom is equal to the number of electrons gained lost or shared by the atom to achieve the nearest noble gas configuration.
2. atomic size:- atomic size or atomic radius is the distance between the centre of the nucleus and the outermost shell of an isolated atom.
I hope you understand
=====================
raj1005:
great gori8
Answered by
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Valency and atomic size
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valency and atomic size
===================================================
======= What is valency ===========
=>
Valency is the number of electrons at its atomic charge.
or
equivalent weight of hydrogen that it will react with.
----------------------------------------------------------------------------------------------------------------
some elements have several charge like NITROGEN = +5
Valency of an element is a measure of the combining capacity of its atom to form chemical bonds.
For metals, valency is equal to the number of electrons in the outermost shell of their atoms.
1. Valency is different from oxidation number
2. it has no sign
3. valency of nitrogen is 3
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======= what is atomic size ========
=> Atomic size is the distance from the nucleus to the valence shell.
===============
Atomic size is difficult to measure because it has no definite boundary. The atomic radius of a chemical element is a measure of the size of its atoms. atomic sizes increase as one moves downwards in the Periodic Table of the Elements.
Helium has the smallest radius
Helium has 31 PM
===================================================
----------------------------------------------------------------------------------------------------------------
valency and atomic size
===================================================
======= What is valency ===========
=>
Valency is the number of electrons at its atomic charge.
or
equivalent weight of hydrogen that it will react with.
----------------------------------------------------------------------------------------------------------------
some elements have several charge like NITROGEN = +5
Valency of an element is a measure of the combining capacity of its atom to form chemical bonds.
For metals, valency is equal to the number of electrons in the outermost shell of their atoms.
1. Valency is different from oxidation number
2. it has no sign
3. valency of nitrogen is 3
----------------------------------------------------------------------------------------------------------------
======= what is atomic size ========
=> Atomic size is the distance from the nucleus to the valence shell.
===============
Atomic size is difficult to measure because it has no definite boundary. The atomic radius of a chemical element is a measure of the size of its atoms. atomic sizes increase as one moves downwards in the Periodic Table of the Elements.
Helium has the smallest radius
Helium has 31 PM
===================================================
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