First ionization energy of sodium causes an [blank_start]......[blank_end] to be changed to an [blank_start].......[blank_end]
Responda
Atom
Ion
Ion
Atom
Questão 2
Questão
First ionization energy of sodium causes an electron to be [blank_start]gained[blank_end]
Responda
gained
lost
Questão 3
Questão
Ionization energy is [blank_start]added[blank_end] as it [blank_start]creates[blank_end] a bond between electron and atom
Responda
added
removed
creates
breaks
Questão 4
Questão
Write equations to illustrate the first and second ionisation energies of sodium.
Na([blank_start]g[blank_end]) --> Na[blank_start]+[blank_end](g) + [blank_start]1 e-[blank_end]
Na+([blank_start]g[blank_end])--> Na[blank_start]2[blank_end]+(g) + [blank_start]1e-[blank_end]
Responda
g
g
+
2
1e-
1 e-
Questão 5
Questão
Explain why the second ionization energy of any atom is always larger
than its first
The 1st e- is being removed from a [blank_start]neutral atom[blank_end] whereas the second electron is being
removed from a [blank_start]+1 ion[blank_end], the same nuclear charge is attracting a smaller number of
electrons, so the electrons are held [blank_start]more firmly[blank_end].
Responda
neutral atom
positive 1 ion
+1 ion
neutral atom
more firmly
more weakly
Questão 6
Questão
The second ionisation energy of sodium is around 9 times larger than its first, while the
third is only around 1.5 times larger than its second. Suggest why this is so.
The electron being removed from Na+ is from [blank_start]2p[blank_end] orbitals which are [blank_start]closer[blank_end] to the
nucleus, shielded less, so more closely attracted to the nucleus. This makes them
[blank_start]harder[blank_end] to be removed.
The electron being removed from Na+2 is also from 2p orbitals which are relatively the
same distance from the nucleus, same shielding, so attracted to the nucleus slightly
more. This makes them only a little [blank_start]harder[blank_end] to be removed.
Responda
2p
2s
closer
farther away
easier
harder
harder
easier
Questão 7
Questão
Na is larger ⇒more [blank_start]shielding[blank_end]
The electron being removed in Li is the [blank_start]2s[blank_end] and the electron being removed in Na is the
[blank_start]3s[blank_end]. The electron in 3s is [blank_start]further away[blank_end] from the nucleus
Responda
shielding
2s
3s
further away
Questão 8
Questão
Why is the ionisation energy of sodium less than that of magnesium?
For the same shielding Mg has [blank_start]higher[blank_end] nuclear charge.
Responda
higher
less
Questão 9
Questão
Why is the ionisation energy of aluminium less than that of magnesium?
Al: 1s2 2s2 2p6 3s23p1
Mg: 1s2 2s2 2p6 3s2
Removing [blank_start]3p[blank_end] electrons is easier than removing [blank_start]3s[blank_end] electrons because [blank_start]3p[blank_end] are more
energetic.
Responda
3s
3p
3s
3p
3p
3s
Questão 10
Questão
IE [blank_start]decreases[blank_end] down a group
Responda
decreases
increases
Questão 11
Questão
IE [blank_start]increases[blank_end] across a period
Responda
decreases
increases
Quer criar seus próprios Quizzesgratuitos com a GoConqr? Saiba mais.
Semelhante
Chapter 4 Grade 10 SABIS chemistry Quiz Level L Part 1