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State and explain the trend in ionisation energies and its effect on the reactivity of groups containing metals.

First ionisation energies decrease down groups in the Periodic Table:-larger atomic radius-increased nuclear charge is outweighted by increased shielding-reactivity increases down the group as it's easier to...
MT
Answered by Maria T. • Chemistry tutor
3876 Views

Order the following in terms of boiling point and explain your reasoning: Ethanol, Ethane, Propane

All three molecules have induced dipole-dipole interactions. Propane has a higher boiling point than ethane as propane has a higher molecular mass. This means there are more electrons present and the induced...
LC
Answered by Lucy C. • Chemistry tutor
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Explain why: a) Fluorine is more electronegative than chlorine b)∆H hydration fluoride is more negative than ∆H hydration chloride

a) The fluorine atom is smaller than the chlorine atom, and there is less shielding from other shells of electrons. Thus the bonding pair of electrons are more attracted to the positive nucleus. b) The fluor...
OS
Answered by Osama S. • Chemistry tutor
22542 Views

In the presence of carbon monoxide, less oxygen is transported to the blood. Suggest why, in terms of bond strength and stability constants.

Point 1: Stability constant with CO is greater than with 02.Point 2: Bond with CO is stronger than with 02.Explanation: In haemoglobin a central Fe2+ ion in an octahedral complex compromising four dative cov...
AD
4294 Views

What is electronegativity?

"Electronegativity is the power of an atom to attract the electron density in a covalent bond to itself " In order to understand electronegativity we must understand that electrons orbit the nucleu...
TD
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