What type of cleaner is appropriate for grease that has built up on appliances?

Baking soda and dish soap! youre welcome

Use meat tenderizer, this breaks down the fat in the grease. Also, you can use powder laundry soap with warm water.  And also baking soda is great!

Iwould google this

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.