Question | Answer |
A series of nonmetal elements from group 17 of the periodic table | Halogens |
The number of protons found in the nucleus of an atom | Atomic number |
A mathematical function that describes the wave like behavior if either one electron or a pair of electrons in an atom | Electron cloud |
The smallest unit of an element that maintains the properties of that element | Atom |
Group 18; unreactive
Helium, neon, argon, krypton, Xeon, radon | Noble gases |
Group 2;
Beryllium, magnesium, calcium,... | Alkaline earth metals |
Group 1;
Lithium, sodium, potassium, rubidium, cesium, francium | Alkali metals |
An electrically excitable cell that processes by electrical and chemical signaling | Neurons |
The standard unit that is used for indicating mass on an atomic or molecular scale | Atomic mass unit |
A subatomic particle p or p+ and a positive electrical charge of one elementary charge | Proton |
An atom that has the same number of protons as other atoms of the same element do but that has a different number of electron | Isotypes |
An atoms central region, which is made upon protons and neurons | Nucleus |
Vertical column of elements, share chem properites | Group |
Horizonantal row of elements | Period |
The mass of a specific Isotypes | Atomic mass |
The total number of protons and neurons in an atomic nucleus | Mass number |
A subatomic particle that has a negative charge | Electron |