The percentage abundance of two isotopes of boron in a natural sample are 80 and 20. The first isotope has 6 neutrons in the nucleus. If the actual atomic mass of boron is 11.01, calculate the mass numbers of the two isotopes. No Spam

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³