Answer: Option (A) is the correct answer.
Explanation:
A transition element is defined as the element which has incompletely filled d-orbital.
For example, atomic number of chromium is 24 and its electronic configuration is .
Also, sometimes the s-orbital is completely filled and sometimes it is half-filled.
Hence, we can conclude that a single factor that classifies an element as a transition metal is that the highest occupied orbital is a "d" orbital.
Answer:
32.7 kilograms of aluminium oxide will be produced.
Explanation:
Mass of aluminum = 17.3 kg = 17300 g (1 kg = 1000 g )
Moles of aluminium =
According to reaction, 2 moles of aluminum gives 1 mole of aluminum oxide,then 640.74 moles of aluminum will give:
of aluminum oxide
Mass of 320.37 moles of aluminum oxides:
320.37 mol × 102 g/mol = 32,677.74 g = 32.67774 kg ≈ 32.7 kg
32.7 kilograms of aluminium oxide will be produced.