Chemistry Flashcards
(30 cards)
Where are the protons?
In the nucleus
Where are the neutrons found?
In the nucleus
Which particles make up the most mass of the atom?
Protons and electrons
Which particles take up the most space in the atom?
Electrons
What is a period?
They have the same amount of occupied electron shells. ||
What is a group/family
They have the same number of valence electrons. =
How do you find the # of neutrons?
Mass # - atomic #
If the atomic # is 8 what is the # of protons?
8
If the atomic # is 6 what is the # of electrons?
6
Charge atom
Ion
Number of protons
Atomic number
Sum of protons and neutrons
Mass number
Positive subatomic particle
Proton
Uncharged subatomic particle
Neutron
When an atom loses electrons
Positive= cation
When an atom gains electrons
Negative=anion
3Mg(OH)2 what are the elements?
Mg, O, H
3Mg(OH)2 # of atoms of each Element?
3Mg, 5O, 5H
What is an ion?
An atom or group of atoms that have an electric charge
What type of ion is a metal?
Cation = positive
What type of ion is halogens?
Negative = anion
What’s a Bohr diagram?
A diagram that shows the electrons in the orbit around the nucleus
True or false: a neutron is positive and located in the nucleus
False
True or false: noble gases are very unreactive liquids
False
