Atoms Flashcards
What is the relative mass of protons
1
What is the charge of protons
+1 / positive
What is the charge of neutrons
No charge / neutral
What is the charge of electrons
-1, negative
What is an ion
an atom with a charge
what is an element
a type of atom
what does the mass number of an element mean
total number of protons and neutrons
what does the atomic number of an element represent
number of protons
what is an isotope
different forms of the same element with the same number of protons but different number of neutrons
how do you work out relative mass
sum of (isotope abundance x isotope mass) divided by the sum of abundance of all isotopes
what are molecules
2 or more of the same atoms chemically bonded together
what are compounds
2 or more different elements chemically bonded together
what are mixtures
2 or more substances that are not chemically bonded together
