Atomic structure
What particle(s) is found is the nucleus?
What are protons and neutrons?
What is the charge of a proton?
What are the areas where electrons are found around the nucleus called?
What is Energy levels (shells)
What is a column called on the periodic table?
What is a group?
What do we call a substance made of only one type of atom?
What is an element?
What are the 3 subatomic particles that make up an atom?
What are protons, neutrons, and electrons?
What are the charges of a neutron and an electron?
What is 0 and −1
How many electrons can fit on the first shell?
What is 2
What is a row called on the periodic table?
What are Periods?
What do we call a substance made of two or more different elements chemically joined together?
What is a compound?
What subatomic particle determines the identity of an atom?
How do you figure out the number of protons, and the number of electrons in a neutral atom?
What are Atomic number
How many electrons can fit on the second shell?
What is 8
How many periods are on the periodic table?
What is 7?
Is H₂O an element or a compound, and how do you know?
What is a compound, because it contains two different elements (hydrogen and oxygen)
Protons repel each other. What particle in the nucleus helps stop the protons from pushing the nucleus apart?
What is Neutrons
How do you figure out the # of neutrons?
What is the atomic mass - protons?
What is the WRITTEN electron configuration of calcium?
What is 2,8,8,2
The group tells you the number of these in the outer shell, which gives elements in the same group similar chemical properties. What are they?
What are Valence electrons ?
O₂ is a molecule, but it is not a compound. Explain why
What is A molecule is two or more atoms joined together, but both atoms in O₂ are the same element, so it isn’t a compound
where is most of the volume/space (not mass) in atom?
What are electrons in/on the energy levels/electron cloud?
Sodium has atomic number 11 and mass number 23. How many protons, neutrons and electrons does it have?
What is 11 protons, 12 neutrons, 11 electrons
Sulfur has the electron configuration 2,8,6. What are the electrons in its outer shell called, how many does sulfur have, and how many more does it need for a full outer shell?
What is Valence electrons; 6; 2 more
An element is in Period 3, Group 2. How many electron shells does it have, and how many valence electrons?
What is 3 shells, 2 valence electrons (magnesium)?
Classify each of these as an element, a compound, a molecule, or more than one: Ne, O₂, CO₂.
What is Ne is an element (single atoms, not a molecule). O₂ is an element and a molecule. CO₂ is a compound and a molecule.