Symbols
Mg
Magnesium
The part of the atom that is found within the nucleus, positively charged, and is equal to an element's atomic number.
Proton
This family is stable and relatively unreactive. Furthermore, this family have low boiling points and low melting points. Physically, they are colorless and have no smell. Members of this family are helium (He), neon (Ne), and argon (Ar).
Noble Gases
This element has 29 protons.
Copper (Cu)
This element is a noble gas and is commonly used to inflate balloons because of its extremely light weight.
Helium (He)
H
Hydrogen
The center of the atom where the protons and neutrons are located, and is extremely dense.
Nucleus
This family has high melting points, high boiling points, and high conductivity. Physically they are both metallic and malleable. Members of this family are iron (Fe), copper (Cu), and silver (Ag).
Transition Metals
This element has 5 neutrons.
Beryllium
This element is a nonmetal and makes up nearly 80% of the air in earth's atmosphere.
Nitrogen (N)
Sodium
Na
The part of the atom that is located on the outside of the nucleus, is negatively charged and weightless.
Electron
What is the only element on the periodic table with an atomic number less than 100 to not have a family?
Hydrogen (H)
This element has 3 fewer electrons than chlorine.
Silicon (Si)
This element is a halogen and is a gas at room temperature. It is a yellow, toxic gas that is found in pools, various salts like table and road salt, and bleach.
Chlorine (Cl)
Gold
Au
The part of the atom that is located within the nucleus, has no charge, and is not always the same as an element's atomic number.
Neutron
This family's name means "salt formers" in greek. They are the only family to occur in the three states of matter at room temperature. They are highly reactive, highly electronegative, and highly toxic non-metals.
Halogens
61
This element is an alkali metal and is commonly used for batteries, medication for behavior disorders, and even has a song named after it! (by Nirvana)
Lithium (Li)
Sn
Tin
The value that is found by adding the number of protons and neutrons of an element together.
Atomic mass/weight
These elements are extremely reactive and are highly water-sensitive (they react violently with water), so they must be stored in oil. Physically, they are silvery, white and light.
Alkali Metals
This element is the only one in the first 20 elements to have more neutrons than other elements with higher atomic numbers (low atomic number, more neutrons than other elements).
Argon (Ar)
This element is an alkali earth metal and is commonly found in cement used for buildings, chalk, and in dairy products. It cannot be processed in the human body without Vitamin D.
Calcium (Ca)