The halogens and noble gases are alike because they are all non-metallic elements, with the exception of astatine, a radioactive
Answer:
Here are some of the differences between a mixture of iron and sulfur, and iron sulfide: the mixture can contain more or less iron, but iron sulfide always contains equal amounts of iron and sulfur. the iron and sulfur atoms are not joined together in the mixture, but they are joined together in iron sulfide.
Explanation:
Is there any answers to choose from?
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Answer:
Sodium (Na)
Explanation:
The element on the periodic table at Column (group) 1, period 3 is Sodium (Na)
The answer is 4. It can hold 4 sublevels as s.p,d,f and it holds 32 electrons
