The electron configuration 1s^2 2s^2 2p^6 3s^2 describes the electrons of which element?

sodium

manganese

phosphorus

magnesium

1. Explain the arrangements of electrons in the atom and include what valence electrons are.

What metric units does a graduated cylinder use?

Which word signals a nonrestrictive clause in a complex sentence? T F

How do atoms with stable nuclei differ from atoms with unstable nuclei?

Which quantity can be calculated for a solid compound, given only the formula of the compound and the Periodic Table of elements

How does the quantity of atp produced as a result of activity by the electron transport chain compare to the quantity produced as a result of glycolysis?

Molybdenum has a molar mass of 95.94g/mol. How many molecules of molybdenum are in 150.0 g of molybdenum

Describe a way that people might be able to solve each envioronmental problem listed below. coal mining can harm habitats and cause pollution.

A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the volume of the gas at 100. degrees C?

Jack wants to know if it takes longer for warm water to freeze into ice cubes than cold water, so he performed the following experiment. Jack placed 50 mL of water in the refrigerator and allowed it to cool to a temperature of 4°C.