Final Project: Atomic Structure Crossword

An ____ has an extra electron that creates a negative charge in an ion
What happens to the number of protons as you move left to right across a period?
What happens to the number of electrons as you move down a group?
A ____ ation has fewer electrons and creates a positive charge in an ion
What is the element with an atomic number of 87 (symbol)?
____have a positive charge
____ have a negative charge
____ have neiher positive nor negative charges; think neutral
Where protons and neutrons are found
where electrons are found
The number that represents the number of protons in an element (bottom left of box)
Idea of the atom originated from him (think Greek)
An ____ is the smallest particle of an element that retains all of the chemical and physical properties of that element
Who completed the gold foil experiment
What element has the atomic number of 17?
An ___ is an atom with a net electric charge due to the loss or gain of electrons