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Elements and Compounds

Questions about the properties and characteristics of elements as observed in nature and in compounds. Chemical formulas are also converted to and from symbols in covalent or ionic bonds. All the questions you want to ask about the elements and the compounds they form.

500 Questions

Why the formulas of barium chloride and strontium chloride are similar?

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Asked by Wiki User

It is because Barium and Strontium are both elements of same group and have same outer shell configuration of ns2

where n is the principal quantum number or shell number.

Furthermore, they both are bonded to same element.

Hence, the formula of Barium and Strontium Chloride are similar.

What in a microscope uses a beam of visible light passing through one or more lenses to magnify an object?

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Asked by Wiki User

No, a beam of electrons is used by an electron scanning microscope. A light microscope uses light waves either reflected off the surface of the object under study, or passed through the object from beneath. Some people might consider a light wave as a type of electron beam, but for the purposes of microscopy, the ESM is capable of far greater magnification than the LM.

What is solid CO2 called?

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Asked by Wiki User

a molecular solid...