Chemistry Prefixes
Km equal to
1000m
The inner part of an atom that contains the proton and the neutron is called the __________.
Nucleus
The mass of an electron is much -------- than that a proton
smaller
This is anything that takes up space (has a mass).
matter
Atomic numbers of an atom are the same as the number of what in an atom?
protons
a milligram equal
.001g or 10^-3 g
These particles have a positive charge and are found inside the nucleus.
proton
Atomic masses are measured in what?
AMU
The smallest pieces of matter are called __________.
atoms
Carbon's atomic number is _______.
6
a centimeter is equal to
.01 m
These particles are located within the nucleus, and have no charge.
Neutron
A proton has the atomic mass of what?
1
What type of a mixture is black coffee?
homogeneous mixture
What element has a number of 56?
barium
a microgram is equal to
10^-9 g
These particles are negatively charge and are found outside the nucleus.
electrons
A neutron has the atomic mass of what?
1
aluminium foil is a?
pure substance
Why does hydrogen have an atomic number of 1?
because it only has one proton
a micrometer is equal to
10^-6 m
Most of the mass of an atom is located here.
nucleus
The atomic mass equals the mass of ?
protons and neutrons
Water is a?
compound
Some atoms have more ___________, which makes it an isotope
neutrons