Which statements describe the elements in Group VIII of the Periodic Table? 1 Their atoms have full outer electron shells. 2 They are unreactive metals. 3 They are monatomic gases. 4 They are diatomic gases.
A.
1 and 3
B.
1 and 4
C.
2 and 3
D.
2 and 4
Exam No：0620_s24_qp_22 Year：2024 Question No：23
Answer:
A
Knowledge points:
8.4.1.1. have high densities
8.4.1.2. have high melting points
8.4.1.3. form coloured compounds
8.4.1.4. often act as catalysts as elements and in compounds
8.4.2. Describe transition elements as having ions with variable oxidation numbers, including iron(II) and iron(III)
Solution:
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