Elements
O
oxygen
The inner part of an atom that contains the proton and the neutron is called the __________.
nucleus
Atomic numbers of an atom are the same as the number of what in an atom?
protons
atom
What is the rate which any point oscillates?
Frequency
H
hydrogen
These particles have a positive charge and are found inside the nucleus.
proton
Carbon's atomic number is _______.
6
An ______________ is a situation specifically set up to observe what happens under certain conditions.
experiment
The separation of successive peaks (or valleys) are called________________.
wavelength
Na
sodium
These particles are located within the nucleus, and have no charge.
neutron
What element has a number of 56?
barium
The type of change that transforms one substance into another is ___________________.
chemical change
Each unique "place" in the pattern is called a __________________, and each can hold one single electron.
quantum state
Al
These particles are negatively charge and are found outside the nucleus.
electrons
Why does hydrogen have an atomic number of 1?
Because it only has one proton.
Give an example of a physical change....
Examples, grinding, melting, boiling, dissolving, heating or cooling
'phonton' means: _______________________
the smallest possible quantity (or quanta) of light
Cu
copper
Most of the mass of an atom is located here.
nucleus
Some atoms have more electrons, which makes it an ___________ and gives it a negative charge
isotope
Per Niels Bohr, _______________ explains how the universe behaves on a very small scale.
Quantum theory
The set of quantum states for an electron in an atom that have approximately the same energy is _________________
energy level