Qualification > Sciences
ALL CIE CHEMISTRY DOUBTS HERE !!
HUSH1994:
Anyone can answer this question urgently:
State the factors affecting the ionisation energy and state the action of each one of them
Twinkle Charms:
--- Quote from: HUSH1994 on October 01, 2010, 01:50:32 pm ---Anyone can answer this question urgently:
State the factors affecting the ionisation energy and state the action of each one of them
--- End quote ---
1) Size of the positive nucleur charge -- as the atomic number increases, there is an increase in the nucleur charge which causes an increase in the ionisation energy.
2)Distance of the electron from the nucleus -- when the distance of electron increases from the nucleus, the attractive force decreases therefore ionisation energy decreases.
3)Shielding effect of the inner electrons -- all the electrons are negatively charged and repel each other. Electrons in filled inner shells repel electrons in the outer shell and reduce the effect of positive nucleur charge. This is called the sheilding effect. The greater the shielding effect on an electron, lower the ionisation energy.
Arthur Bon Zavi:
--- Quote from: Twinkle Charms on October 01, 2010, 02:15:51 pm ---1) Size of the positive nucleur charge -- as the atomic number increases, there is an increase in the nucleur charge which causes an increase in the ionisation energy.
2)Distance of the electron from the nucleus -- when the distance of electron increases from the nucleus, the attractive force decreases therefore ionisation energy decreases.
3)Shielding effect of the inner electrons -- all the electrons are negatively charged and repel each other. Electrons in filled inner shells repel electrons in the outer shell and reduce the effect of positive nucleur charge. This is called the sheilding effect. The greater the shielding effect on an electron, lower the ionisation energy.
--- End quote ---
8) 8) This!!
Twinkle Charms:
--- Quote from: Theonlyone on October 01, 2010, 02:57:17 pm --- 8) 8) This!!
--- End quote ---
You have to but in everything yeah? :P :D
Deadly_king:
--- Quote from: Twinkle Charms on October 01, 2010, 02:15:51 pm ---1) Size of the positive nucleur charge -- as the atomic number increases, there is an increase in the nucleur charge which causes an increase in the ionisation energy.
2)Distance of the electron from the nucleus -- when the distance of electron increases from the nucleus, the attractive force decreases therefore ionisation energy decreases.
3)Shielding effect of the inner electrons -- all the electrons are negatively charged and repel each other. Electrons in filled inner shells repel electrons in the outer shell and reduce the effect of positive nucleur charge. This is called the sheilding effect. The greater the shielding effect on an electron, lower the ionisation energy.
--- End quote ---
rightly said Twinkle :)
+rep
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