Atomic Symbols and Isotopes Flashcards
Do protons always stay the same?
Yes, the number of protons always stay the same for the atom. Nitrogen will always have 7 protons, and this applies to all other elements.
Do Isotopes have the same protons?
Yes, but they have different numbers of neutrons.
What about the mass of Isotopes?
They have the same atomic number but different mass numbers.
Are protons and atomic number the same?
Yes, # of protons = atomic #.
What about a neutral atom? (0 net charge)
of protons = # of electrons.
How do you find the number of neutrons?
Neutrons = mass number (protons + neutrons) - atomic number (number of protons)
On the element symbol with mass number and atomic number. Where is mass number located?
Upper left corner as an exponent.
On the element symbol with mass number and atomic number. Where is the atomic number located?
Lower left corner of mass number. Or another saying is under the mass number as a subscript.
What is an atomic number?
How many protons the atom has.
What is the mass number of an atom?
How many neutrons + protons the atom has. Different for different isotopes.
Define average atomic mass
How much the atom weights; average of all isotopes.
Empirical Formula
Indicates the types of atoms present in the most simplest reduced whole number-ratio of the number of atoms (or ions) in a compound.
Structural Isomers
They have the same types of atoms but they are connected together in different ways.
