Answer all the questions in the spaces provided. (a) Fill the gaps in the table for each of the given particles. name of isotope type of particle charge symbol electron configuration --- --- --- --- --- carbon-13 $1s^22s^22p^2$ $-1$ $^{37}_{17}\text{Cl}^-$ sulfur-34 atom $0$ iron-54 cation $1s^22s^22p^63s^23p^63d^6$ (b) One of the factors that determines the type of bonding present between the particles of a substance is the relative electronegativities of the bonded…

Chemistry 9701/22 — October/November 2015

Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme

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Topics Atomic Structure · Chemical Bonding · Chemical Energetics · Atoms, Molecules and Stoichiometry · Chemical Periodicity · Nitrogen and Sulfur · +5 more

Q1Atomic StructureChemical BondingFree sample

Answer all the questions in the spaces provided.

(a)

Fill the gaps in the table for each of the given particles.

name of isotope	type of particle	charge	symbol	electron configuration
carbon-13				$1s^22s^22p^2$
		$-1$	$^{37}_{17}\text{Cl}^-$
sulfur-34	atom	$0$
iron-54	cation			$1s^22s^22p^63s^23p^63d^6$

(b)

One of the factors that determines the type of bonding present between the particles of a substance is the relative electronegativities of the bonded particles.

(i)

Explain the meaning of the term electronegativity.

(ii)

Name and describe the type of bonding you would expect to find between particles with equal electronegativities.

(iii)

Name and describe the type of bonding you would expect to find between particles with very different electronegativities.

(c)

The boiling points of some molecules with equal numbers of electrons are given.

substance	fluorine	argon	hydrogen chloride	methanol
formula	$\text{F}_2$	$\text{Ar}$	$\text{HCl}$	$\text{CH}_3\text{OH}$
boiling point / K	85	87	188	338

(i)

Explain why the boiling points of fluorine and argon are so similar.

(ii)

Explain why the boiling point of hydrogen chloride is higher than that of fluorine.

(iii)

Explain why methanol has the highest boiling point of all these molecules.

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3 more questions

Q2Chemical Energetics · Atoms, Molecules and Stoichiometry7M
Q3Chemical Periodicity · Nitrogen and Sulfur14M
Q4Halogen Compounds · Introduction to Organic Chemistry · Nitrogen Compounds · Carboxylic Acids and Derivatives · Hydrocarbons22M

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