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Multiple Choice
List the following elements in order of decreasing density under standard conditions: a) Magnesium, Mg b) Bromine, Br c) Calcium, Ca d) Barium, Ba e) Hydrogen, H
A
d > a > c > b > e
B
d > c > a > e > b
C
e > b > c > a > d
D
e > c > b > d > a
E
a > c > b > e > c
Verified step by step guidance
1
Identify the standard conditions for density, which are typically at 1 atm pressure and 25°C (298 K) for gases and room temperature for solids and liquids.
Research or recall the densities of each element under standard conditions: Magnesium (Mg), Bromine (Br), Calcium (Ca), Barium (Ba), and Hydrogen (H).
Compare the densities of the elements. Note that density is mass per unit volume, so elements with higher mass and smaller volume will have higher densities.
Arrange the elements in order of decreasing density based on the values obtained. Start with the element with the highest density and end with the one with the lowest.
Verify the order by cross-referencing with reliable data sources or periodic table information to ensure the sequence is correct.