Parts of An Atom
What are the 2 parts of an atom?
What are the nucleus and the electron cloud?
What subatomic particles have about the same mass?
What are protons and neutrons?
How many energy levels does Rubidium (Rb 37) have?
What are 5 energy levels?
How do you figure out the # of neutrons in an atom?
What is the atomic mass - protons?
H2O is most specifically this type of substance?
What is a compound?
How many miles a night do most hamsters run?
What is 3-6 miles?
What is the charge of a proton?
What number tells us the # of protons?
What is the atomic number?
What particle(s) is found in/on the energy levels/electron cloud?
What are electrons?
How many valence electrons does magnesium have?
What is 2 valence electrons?
What subatomic particle determines the identity of an atom?
What is the charge of a neutron?
What is (no charge) neutral?
How many electrons can fit on the first energy level?
What is 2?
Which subatomic particles are always in equal amounts in a neutral atom?
What are protons and electrons?
How many electrons can fit on the 2nd energy level?
What is 8?
The electron model we learned in class that shows only valence electrons
What is the lewis diagram or electron dot model?
60% of Sodium is the Isotope Na-23 and 40% is Isotope Na-21. Which mass number could be the average atomic mass?
23.2 amu 22.4 amu 21.7 amu
22.4 amu
where is most of the mass in an atom?
What subatomic particle never changes (except during radioactive decay)?
What are protons?
How many valence electrons do elements in group 13 have?
What are 3 electrons?
What subatomic particle can increase or decrease without changing the atom's charge?
What is neutrons?
The atomic model that we learned about that shows all electrons circling a nucleus?
What is a Bohr model?
What is a column called on the Periodic Table?
What is a group?
What is a period?
How many periods are on the periodic table?
What is 7?