Parts of the Atom Flashcards
Does air have mass?
Yes. Air has mass though it is only a little it is enough to tip a meter stick knowing that there is mass in air.
If the atom is the size of a football field then the necleus is what size?
The size of a marble or in other words tiny.
Heating substance (blank) molecule motion.
increases
Cooling substances (blank) molecule motion.
decreases
As molecular motion increases the space between molecules (blank)
increases
As molecular motion decreases the space between the molecules (blank).
decreases
Atomic number
The atomic number is located at the top right hand corner. The number represents the number of protons in the atom. The number of protons = the number of electrons.
Atomic mass
The number of protons + the number of electrons.
Where is each part of an atom located.
The protons and neutrons are located in the necleus.The electrons are in the electron shells. The rest of the atom is empty space.
How can a element b identified?
Its physical and chemical properties.
What is a mlecule?
When elements chemically join.
What holds the hydrogen and oxygen together in water?
Chemical bonds
