What can u conclude about atoms with the most number of holes? Why?

Hundreds of years ago, alchemists tried to turn lead into gold. Is this possible? If not, why not? If yes, how would you do it?

How many protons and electrons are contained in an atom of element 44?

How did the charge distribution in the plum pudding model affect alpha particles passing through an atom?

How are protons and neutrons similar? How are they different?

What advantage does the atomic mass unit have over grams when speaking of the mass of an atom or a subatomic particle?

Determine the number of electrons and protons contained in an atom of the following elements: a. sulfur b. As c. element number 24

A fundamental idea of Daltons atomic theory is that atoms of an element can be neither created nor destroyed. We now know that this is not always true. Specifically, it is not true for uranium and lead atoms as they appear in nature. Are the numbers of these atoms increasing or decreasing? Explain.

How does Daltons atomic theory account for the Law of Conservation of Mass?

What evidence led to the conclusion that cathode rays had a negative charge?