Which statement about the electromagnetic spectrum is not correct?

The frequency of visible radiation is higher than the frequency of UV radia

Which is most likely to result in the formation of an ionic bond?

When a highly electronegative element reacts with a group 2 element

Best chemistry teacher?

Miss Walters, Miss Walters, Miss Walters, Miss Walters

Which statement accurately describes the structure of solid sodium chloride?

Each sodium ion is surrounded by six chloride ions

Which describes metallic bonding best?

Positively charged metal ions are attracted to delocalized electrons.

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Y13 SL Topic 2-4 Revision

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Answers

1
What is the atomic number of a neutral atom which has 51 neutrons and 40 electrons?
40
51
131
91
2
Which statement about the electromagnetic spectrum is not correct?
The energy of IR is lower than the energy of ultraviolet radiation
The wavelength of ultraviolet radiation is shorter than infrared radiation.
The frequency of visible radiation is higher than the frequency of UV radia
Wavelength is inversely proportional to frequency.
3
Which is a correct statement about the reaction of sodium metal with chlorine gas?
Each sodium atom gains one electron from each chlorine atom
The reaction is exothermic
One mole of chlorine molecules reacts with one mole of sodium atoms
Both of the ions in the product have the electron configuration of argon
4
Which is most likely to result in the formation of an ionic bond?
When hydrogen reacts with a group 17 element
When a highly electronegative element reacts with a group 2 element
When two highly electronegative elements react together
When a group 16 element reacts with a group 17 element
5
Which transition in the hydrogen atom emits visible light?
n = 3 to n = 2
n = 2 to n = 1
n = 1 to n = 2
n = 2 to n = 3
6
Which of the following would have the same numerical value for all elements in the same period?
Energy sub-levels occupied
Highest energy levels occupied
Valence electrons
Orbitals occupied
7
What is the shape of NCl₃?
Trigonal pyramidal
Tetrahedral
Square planar
Trigonal planar
8
Which will not conduct electricity?
NaCl(s)
HCl(aq)
Hg(l)
PbBr2(l)
9
Best chemistry teacher?
Miss Walters
Miss Walters
Miss Walters
Miss Walters
10
The following four compounds have very similar molar masses. Which has the strongest intermolecular forces?
CH3CH2CH2CHO
C(CH3)4
CH3CH2CH2CH2CH3
CH3CH2CH(OH)CH3
11
Which statement accurately describes the structure of solid sodium chloride?
It is an metallic lattice
Each sodium ion is surrounded by six chloride ions
The sodium ions are arranged tetrahedrally around each chloride ion
12
Which element has the highest metallic character in Group 14?
C
Ge
Si
Sn
13
Which ion has the largest radius?
P3−
S2−
Mg2+
Na+
14
Which describes metallic bonding best?
Positively charged metal ions are attracted to delocalized electrons.
Positively charged metal ions are attracted to negatively charged ions.
Negatively charged metal ions are attracted to delocalized electrons.
Negatively charged metal ions are attracted to positive ions.
15
Which equation represents the first electron affinity of chlorine?
Cl(g)+e-→ Cl-(g)
Cl2(g) + e- → Cl-(g)
Cl(g) → Cl+(g) + e-
Cl+(g) + e- → Cl(g)

Y13 SL Topic 2-4 Revision Flashcards | StudBud