Build an atom
Show me what a neutral carbon atom looks like. Atomic number 6 and Mass 12
6 protons
6 neutrons
6 electrons
What is an electron
What is a proton
A positively charged subatomic particle
what is a neutron
a neutral subatomic particle found in the nucleus
Show me a neutral oxygen atom. Atomic number 8, Mass 16
8 protons
8 neutrons
8 electrons
What is an atom
the basic unit of matter
What is an element
- a pure substance
-made up of one type of atom
-an atom with a specific number of protons
What is the mass number
the number of protons plus neutrons in the nucleus of an atom
Show me an atom of neon with a charge of +2. atomic number 10 mass 20
Protons 10
Neutrons 10
Electrons 8
Nucleus is the what
the positively charged, dense center of an atom.
o The nucleus contains protons and neutrons.
Periodic table is what
a chart that organizes the chemical elements based on their properties
Atomic Number
the number of protons in the nucleus of an atom.
Show me an atom of Mg with a charge of -3. Atomic number 12 mass 24
protons 12
neutrons 12
electrons 15
Energy level is what
a particular region where electrons can orbit a nucleus.
Valence electron is what
electrons found in the outermost energy level of an atom.
An electron dot diagram is what? Show me on the white board
a diagram that shows the element symbol surrounded by dots representing valence electrons
Show me an atom of phosphorus with a charge of -3. Atomic number: 15 mass: 31
Protons 15
neutrons 16
electrons 18
Isotope
All isotopes of a given element have the same number of protons, but differ in the number of neutrons.
Ion
an atom or molecule that has an electrical charge because it has gained or lost electrons.
Radioactive
-capable of releasing radiation.
- In a radioactive atom, the nucleus can spontaneously decay and emit particles and/or light. These emissions are called radiation
-emissions change the number of protons in the nucleus, and the atom becomes a different element