Periodic Table
What is the unit of atomic mass?
AMU
Which state of matter has a definite shape and volume, and its atoms vibrate but can’t move and are strongly attracted to each other?
Solid
What is the inside of the atom called?
The nucleus
how do you find density?
Mass divided by volume
what is the one thing that doesn’t have atoms?
energy
What does the atomic number show?
The number of protons
Which state of matter takes the shape of its container, has a definite volume and its atoms are attached to each other but can move?
Liquid
What particle of the atom has no electric charge and is found in the center of the atom?
Neutrons
What is a mixture?
When different objects are mixed together but keep their individual properties
What is density?
How highly packed a substance’s molecules are
What are the letters on the element square?
The chemical symbol
Which element takes the shape and volume of it’s container, and its atom move freely and independently?
Which particle of the atom has a positive electric charge and is found in the middle of the atom
protons
A molecule is made when…
When two or more atoms combine
Which property determines how it will react with other elements?
Chemical property
What does the number on the bottom of the element mean?
It is the atomic mass
Which state of matter is not found on earth
Bose-Einstein condensate
Which particle orbits the atom’s nucleus and has a negative electric charge
Electrons
What is an ion?
An ion is an atom with an electrical charge
Which property affects the weight, color or density but wont affect how it reacts with other elements?
Physical property
How do you find the number of neutrons?
Mass - atomic number
What state of matter has positively charged ions and free electrons?
Plasma
True or False: electrons determine the chemical properties of the atom
True
What is an isotope?
When atoms of the same element have different numbers of neutrons but the same number of protons
A solution is formed when..
One substance is dissolved in another