An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

20

The answer is 25

What type of bond occurs between atoms having nearly equal attraction for the electrons?

4. I get it! Now I know that Earth moves by -

What kind of cells animals have

How many moles of calcium hydroxide (ca (oh) 2) are in 165 grams of ca (oh) 2?

Calculate the coulombic force of attraction between ca2 + and o2 - in cao, which has the nacl-type structure

For the baeyer-villiger oxidation of cyclohexyl methyl ketone

What will happen if the density of an object is less than the density of water?

Which cannot be separated into simpler substances? compound element solution mixture

What jobs involve chesmistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.