Terms
Particles that are closely packed and vibrate in place.
Solids
A solid
Find the number of protons in Helium
What is the chemical symbol for Magnesium?
Mg
What is the sum of the number of protons and neutrons in an atom called?
Define matter
Anything that has mass and takes up space
A gas
Examples include: water vapor, steam, helium in a balloon
Find the number of protons and electrons in Titanium
protons: 22
electrons: 22
What is the chemical symbol for zinc?
Zn
What are the particles called that are widely spaced and move freely?
Gases
The smallest units of matter.
Atoms
Examples include: Hydrogen, Nitrogen, Helium
Find the atomic number and mass number of Nickel
atomic number: 28
mass number: 58.693
What is the chemical symbol for Tin?
Sn
What 2 subatomic particles does the atomic number tell us?
Define element
a substance made up of only one type of atom
A subatomic particle
proton, neutron, or electron
Find the number of protons, electrons, and neutrons in Gallium (do not round).
protons: 31
electrons: 31
neutrons: 38.723
What is the chemical symbol for lead?
Pb
Tell me the number of electrons and neutrons in Platinum?
electrons:78
neutrons:117.08
The periodic table organizes elements based on this:
Atomic number
Example of matter
Examples include: pencil, air, water, people
Find the number of protons, neutrons, and the mass number of Silver.
protons: 47
neutrons: 60.868
mass number: 107.868
What is the chemical symbol for Tungsten?
W
Find the following for the element Arsenic.
Protons, Neutrons, Mass Number and Atomic Number
Protons:33
Neutrons: 41.92159
Mass Number: 74.92159
Atomic Number: 33