ELECTRON CONFIGURATION

Highest occupied energy level of an element

equal to the period
for example, the highest occupied energy level of He is 1, Be is 2, Al is 3, Ca is 4, and Sn is 5

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3 years ago

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2. A sample of apple juice has a volume of 4 mL and a mass of 72 g. What is the density

tangare [24]

Mass=72g
Volume=4mL

$\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}$

$\\ \sf\longmapsto Density=\dfrac{72}{4}$

$\\ \sf\longmapsto Density=18g/mL$

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3 years ago

1. A pure substance is a chemical substance that has the same composition throughout. There are two

marin [14]

Answer:

Option D. Iron and sulfur react to form iron sulfide

Explanation:

Reaction of iron with sulphur is a chemical property and not a physical property.

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3 years ago