Iron has an atomic number of 26 and an atomic weight of 55.847. How many protons would an atom of iron have?

Iron has an atomic number of 26 and an atomic weight of 55.847. How many electrons would an atom of iron have?

Iron has an atomic number of 26 and an atomic weight of 55.847. How many neutrons would an atom of iron have?

What charge does a proton have?

What charge does an electron have?

What charge does a neutron have?

Phosphorus has an atomic number of 15 and an atomic mass of 30.97. How many neutrons will an atom of phosphorus have?

In a Bohr Model, the second energy level of an atom can hold a maximum of ___ electrons

In a Bohr Model, the first energy level of an atom can hold a maximum of ___ electrons

What does the nucleus of an atom contain?

Made of protons, neutrons and electrons, the basic building block of all matter is a(n)__

The atomic weight of an atom is made of the__

The center of an atom is called the__

Exactly how many elements are on the Periodic Table?

Approximately how many elements are on the Periodic Table?

The periodic table provides information about chemical symbols that represent__

Which chemical symbol below is written correctly?

Who is credited with organizing the Periodic Table?

How do you calculate the number of neutrons in an atom of an element?

What element on the Periodic Table has an atomic number of 6?

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