CAIE A-Level Chemistry AS 1.3.2 Number of Orbitals Making Up S P and D Topic Practice

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Question 1

[Maximum number: 4]

Atoms contain the subatomic particles electrons, protons and neutrons. Protons and electrons were discovered by observations of their behaviours in electric fields.

Question (a)

(a)

Electrons in atoms up to 36Kr{ }_{36} \mathrm{Kr} are distributed in s, p and dorbitals.

[ 4 ]

Question (i)

(i)

State the number of occupied orbitals in an isolated atom of 36Kr{ }_{36} \mathrm{Kr}.

Table for Question (i) — CAIE A-Level Chemistry AS
[ 3 ]

Question (ii)

(ii)

The diagram shows a type of orbital.

Figure for Question (ii) — CAIE A-Level Chemistry AS

State the total number of electrons that exist in all orbitals of this type in an atom of 9 F{ }_{9} \mathrm{~F}.

[ 1 ]
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