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Q: What must a useful model of an atom contain?
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What must a neutral atom with four protons contain?

A neutral atom must contain an equal number of electrons because it is a neutral atom.


An atom of any element must contain?

An atom of any element should contain identical atomic numbers.


If an atom contains 15 protons it must contain?

Any atom should have equal number of protons and electrons. If the atom contains 15 protons then it must contain 15 electrons.


What must every atom of carbon contain?

it must contain 6 protons, 6 electons and 6 neutrons.


What must a neutral atom with four contain?

4 electrons


Does ethers contain oxygen?

By definition, ethers must contain at least one oxygen atom.


Why did Thomson think that atom must contain positive charges?

The cathode rays were deflected.


Is sulfide organic?

No. Sulfide is simply a sulfur atom with a negative charge. To be organic a compound must contain carbon.


Molecules must have both hydrogen and oxygen atoms in them to be in this category in addition they usually contain what atom as well?

ion


Every atom of carbon must contain?

One variable and one soul mate. Through the good times and the bad


A compound must have at least one metal atom and one non metal atom?

No. Chemical compounds contain two or more different elements. H2O is a compound that does not contain a metal.There are many other examples, all the organic compounds for instance.


If a neutral atom of 22 protons how many electrons does an atom contain?

22. The electrons have a charge of -1, and protons have a charge of +1. In order for the charges to cancel out and make the atom neutral, there must be an equal number of each.