Compare the density of gases in the thermosphere to the density at sea level. The atmosphere is 10 times denser at sea level

The atmosphere is 10 million times denser at sea level

The atmosphere is 100 times denser at sea level

The atmosphere is 1000 times denser at sea level

- decrease the number of plants and animals living in the water.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

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