Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
What are three parts of an atom?
|
Protons ,neutrons, and electrons
|
|
|
What two ways made up the PTE?
|
atomic mass, elements with same properties are in same family.
|
|
|
What makes up a nucleus?
|
Protons and neutrons and electron cloud.
|
|
|
Define Element.
|
a substance that cant be broken down into another substance
|
|
|
What is the name of the columns on PTE chart?
|
Groups or Familys.
|
|
|
What are the rows on PTE chart named?
|
Periods.
|
|
|
Define Matter.
|
Anything that has mass and takes up space.
|
|
|
What happens when you change the particles in an atom.
|
The element changes.
|
|
|
Who created the PTE?
|
Dimitri Mendeleev.
|
|
|
What are the charges in protons , neutrons, and electrons?
|
Protons- positive, Neutrons- neutral, Electrons- negative .
|
