Metals, Non-Metals and Metalloids
What are the three classes of elements?
Metals, Non-Metals and Metalloids
Particle that is positively charged.
What is Proton?
A negatively charged particle.
What is Electron?
Orbits
The columns on the periodic table.
What is groups/families?
An element that has an atomic number of 15.
What is phosphorus?
Atomic #15 = 15 protons.
Elements that are conductive, malleable and tend to be shiny.
What is metals?
Particle that has mass and is neutral in charge.
What is neutron?
The identity of an element is determined by this particle.
What is proton?
This model is based upon similarities to planetary motion.
Bohr's Model
The rows on the periodic table
What is period
The identity of an atom with the atomic number 20
Calcium
Atomic # 20 = 20 protons
Elements that are non conductive.
What is Non-metals?
The dense center of an atom.
What is nucleus?
The mass an atom has is determined by the number of...
What is neutrons and protons?
The number of rings/orbits are determined by this number.
Period Number
This family of non-metals are highly reactive.
What is halogens.
An element has 9 electrons.
What is Oxygen? 9 electrons = 9 protons.
Elements that fall between characteristics of metals and non-metals.
What is metalloids?
The area which electrons move around in the atom.
What is electron cloud?
Elements are neutral in charge because which particles are always the same in number of which particles?
Electrons and Protons.
What is the number of electrons the first orbit to hold?
2 electrons
This family of metals are highly reactive with water.
What is Alkali Metals?
Class of elements that tend to be brittle
Non-metals
The electrons on the outside ring that help determine reactivity.
Valence Electrons
Every ring after the second orbit can hold up to a maximum of?
8 Electrons.
This family of non-metals are non reactive.
What is Noble Gases