What is the name of this molecule?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

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?

Apush or pull that moves or changes and object when to objects touch