Atomic Theory
An atomic particle that has no charge
What is a neutron?
Made of two, or more substances that are together in the same place, but their atoms are not chemically combined
What is a mixture?
Materials that can be hammered or rolled into flat sheets or other shapes
What is malleable?
An ion made of more than 1 atom
Whatis a polyatomic ion?
Atoms with the same number of protons and different numbers of neutrons
What is an isotope?
The _____ between the _____ electron and the protons in the _____ of each _____ hold the atoms together in a _____
What are the attractions, shared, nucleus, atom, and covalent bond?
A substance that can conduct an electric current under the same conditions but not under other conditions
What is a semiconductor?
When atoms that easily lose electrons react with atoms that easily gain electrons, they transfer valence electrons.
What is an ionic bond?
Rutherford predicted that an atom has a dense core called...
What is the nucleus?
A chart showing all of the elements arranged according to the repeating pattern of their properties
What is a periodic table?
The chemical bond formed when two atoms share electrons
What is a covalent bond?
Organize by increasing atomic number
What is how are the elements organized on the periodic table?
A covalent bond in which electrons are shared equally
What is a nonpolar bond?
The sum of the protons and neutrons in the atom
What is the mass number?
Atom electrons that have the highest energy
What is a valence electron?
The ability of an object to transfer heat or to carry an electric current
What is the thermal conductivity?
A neutral group of atoms joined by covalent bonds
What is a molecule?
The number of protons in the nucleus
What is the atomic number?
A mixture that features distinct components that are different to analyze and be sorted
What is a homogenous mixture?
Another way to show the number of valence electrons in an element is by drawing an electron dot diagram
What is an electron dot diagram?
A covalent bond in which electrons are shared unequally
What is a polar bond?