Newlands organized the known elements in 1865 by developing what theory?

Dmitri Mendeleev's Periodic Law states that chemical and physical properties repeat themselves in groups of ____.

What scientist determined that atomic mass did not determine the pattern of the periodic table?

Henry Moseley organized the periodic table by

What enabled Moseley to determine the number of electrons in atoms of particular elements?

Periods on the periodic table are arranged

Groups on the periodic table arranged

A halogen is example of a(n)

The nobel gases are located in which column of the periodic table?

A salt could be formed by an alkali metal and a(n)

The atomic radius refers to the distance from the nucleus of an atom to

Atomic radius

Theamount of energy it takes to remove an electron from an atom is

The opposite of ionization energy is

Electronegativity

Of the elements Fe, Hg, U, Te, and Y, which is considered a Group A element?

Of the elements Pt, Sc, V, and Kr, which is a nonmetal?

What is each vertical column of elements in the periodic table called?

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