Parts of an Atom
What is the center of an atom called?
The nucleus.
What makes up the atomic number?
Number of protons.
Are all atoms the same size?
NO
What part of an atom has a negative charge?
Electrons.
What makes up the atomic mass?
The number of protons and neutrons.
What is an element?
A substance that cannot be broken down into simpler substances.
What parts of an atom make the nucleus?
Protons and neutrons.
To get the number of neutrons what do you have to do?
Atomic Mass - Atomic Number = Number of Neutrons
What is the periodic table of elements?
A table of the chemical elements arranged in order of atomic number.
What part of an atom has a neutral charge or no charge?
The neutrons.
What is an Element Symbol?
One - two-letter abbreviation for the chemical name.
What makes different atoms different from each other?
The number of protons in an atom.
What is the definition of Atom?
The smallest piece of an element.
Yes or No?
Yes
If an atom has 20 protons it will have how many electrons?
20