An isotope contains 15 protons, 15 electrons and 17 neutrons. What is the isotope?

How many oxygen are present in 2.50 mol of oxygen atoms?

The aluminum foil on a certain roll has a total area of 18.5 m squared and a mass of 1275 g. Using density of 2.7 g per cubic centimeter for aluminum, determine the thickness in millimeters of the aluminum foil.

Write the electron configurations of cu2 + and ag+. is each electron configuration consistent with the color you observed for each cation? explain.

How many oxygen atoms are in 17.63 grams of co2?

What is the ph of a 7.5*10^-3 m H + solution

What is a scientific explanation for a range of hypotheses and observations supported by testing

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?