Lithium has an atomic number of

Pick the example of a molecule of a compound

The number of electrons in an silver atom are

The symbol for potassium is

Pick the example of a molecule of an element

A sign of a chemical reaction is

An example of a chemical formula is

The subatomic particle that circles the nucleus is

The number of neutrons in a fluorine atom are

The atomic mass (weight) for titanium is

The number of neutrons in a hydrogen atom are

An example of a physical change is

What is the symbol for chlorine

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