Is Tungsten magnetic? I dropped my boyfriends ring (made of Tungsten) down the place in the doorframe where the door closes, not knowing there was actually a hole there.
Use commas to separate things in a list or series. If you have a series of three or more items, use commas to separate each item. Do not place commas before or after the list or series. Do not use commas when all the items in a series are linked by and, or, or nor.
Using commas in lists. You need to put a comma between the different items in a list, as in the following sentences: Saturday morning started with a hearty breakfast of scrambled eggs, bacon, sausage, and French toast. The school has a vegetable garden in which the children grow cabbages, onions, potatoes, and carrots.