Elements that can be pounded into thin sheets are

Most nonmetals are

In the modern periodic table (ours) the elements are arranging in order of increasing

The formula for density is ______.

The atomic number of an isotope is the number of ______.

J. J. Thomson used the fact that ______ charges attract each other in his cathode-ray tube experiment.

______ contain(s) only one kind of atom.

A proton

An electron

A neutron

How many shells does Potassium have?

How many valence electrons does Krypton have?

What is the atomic number of Magnesium?

What is the atomic mass of Iodine?

Why put data into a table during an experiment?

A student sorted 6 elements. He placed iron, silver and sodium in group A. He placed neon, oxygen and nitrogen in group B. What is 1 other element that fits into group B?

A student sorted 6 elements. He placed iron, silver and sodium in group A. He placed neon, oxygen and nitrogen in group B. Which is 1 other element that could fit into group A?

Each atom of protium has 1 proton, 0 neutrons and 1 electron. Each atom of deuterium has 1 proton, 2 neutrons and 1 electron. Are these the same or different elements?

Melting the butter results in ____.

Baking the bread in the oven causes ____.

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