Do all atoms of a given element contain the same number of protons and the same number of neutrons?

The volume of a sample of oxygen is 200.0 mL when the pressure is 3.000 atm and the temperature is 37.0 oC. What is the new temperature if the volume increases to 400.0 mL and the pressure decreases to 2.000 atm

What is the first step in balancing a redox reaction by the half-reaction method?

A 50 kg cart has 324 kg•m/s of momentum. How fast is the cart going?

How many unpaired electrons does boron have

What subatomic particle is responsible for changing an atom into an isotopes?

Which reaction represents an unbalanced neutralization reaction? Na + H2O NaOH + H2 HNO3 + NaOH NaNO3 + H2O NaNO3 + H2O HNO3 + NaOH H2O H2 + O2

How does the health of polar bears indicate the health of the environment

Our body needs iron. Certain foods are rich in iron and iron tablets are usually recommended by doctors. but neither the food nor tablets are hard like iron? Why?

Under which conditions are gases most soluble in water?

Use the periodic table from the lesson to answer the following question. the atomic mass of f is ___.