Atomic Structure
What is the negative subatomic particle called?
electron
What is the element name for Be?
beryllium
How many electrons are in an atom with an atomic number of 12?
12
What element has only 2 electrons in the first shell?
Helium
What does the term "atomos" mean?
indivisible
What charge does a proton have?
positive
What side of the periodic table are the non-metals located?
far right
How many protons are in an atom of Aluminum?
13
First shell - 2, Second shell -8 shell, Third shell - 8
What is one element that is named after a famous scientist?
Nobelian, Rutherfordium, Einsteinium, Curium, Bohrium
What charge does a neutron have?
no charge
What metal is liquid at room temperature?
mercury
How do you determine the number of neutrons in an atom?
Mass number (rounded atomic mass) - atomic number (number of protons/electrons)
Name the element that has a full 1st and 2nd shell.
Neon
True or False: Elements are named after scientists, mythological gods, planets, and places.
True
What subatomic particles make up the nucleus?
protons and neutrons
What does atomic number represent?
number of protons or electrons
How many neutrons are in an atom of Sodium?
23-11 = 12
A Bohr model shows an 2 electrons in the first shell and 6 electrons in the second shell. What is the element?
Oxygen
Which scientist discovered the atom was mostly empty space with a dense nucleus using his Gold Foil Experiment?
Rutherford
Atoms with the same number of protons but different number of neutrons are called...
isotopes
What does atomic mass represent?
number of protons and neutrons
How many shells will an atom of chlorine have?
three
Name a particle that is smaller than a subatomic particle.
Quark