Electron Configuration 1
What differs between isotopes of the same element
What is the number of neutrons?
What is the proton?
columns going down the periodic table
What is a group?
The number that always stays the same for isotopes of same element.
What is the number of protons.
The two sub-atomic particles that make up the nucleus.
What are the protons and neutrons?
rows going across the periodic table
How are the following three atoms related: C-11, C-12 and C-13
What is all three isotopes of carbon?
This particle is 1/1840 the mass of a proton and is found on the energy levels OUTSIDE of the nucleus
What is the electron?
A substance made of two or more elements chemically combined in a set ratio?
What is a compound?
How many neutrons does Gold-197 have?
What is 118 Neutrons?
These two numbers are ALWAYS equal and never change.
What is atomic number and number of protons?
A combination of two or more atoms that are bonded together?
What is a molecule?
The mass number of a lead isotope with 125 neutrons
What is 207?
Area inside of an atom surrounding the nucleus where electrons are found
The electrons farthest away and most loosely held by the nucleus
What is valence electron?