Vocabulary
A substance composed of only 1 type of atom, organized on the Periodic Table.
What is an Element?
Element families are arranged in ____, and they share similar properties.
H2O
What is a Compound? (Water)
The energy level that is the smallest and closest to the nucleus.
What is Energy level 1 / K?
Helium has __ valence electron(s) and __ energy level(s).
What is 2 valence electrons and 1 energy level? (K Energy level)
A subatomic particle that orbits outside the nucleus with a negative charge.
What is an Electron?
The Periodic Table is organized by....
What is Increasing Atomic Number?
O2
What is an Element? (Oxygen Gas)
The energy level that can hold up to 8 electrons.
What is energy level 2 / L?
Mg has __ valence electrons (electrons in the outermost shell). Mg has 12 protons/electrons and goes to energy level M.
A subatomic particle that lives in the nucleus with a positive charge.
What is a Proton?
The ____ are unreactive and have a full outer shell of electrons (full valence shell).
What are Noble Gases?
NaCl
What is a Compound? (Table Salt)
The energy level that can hold 32 electrons.
What is the Energy Level 4 / N?
Explain why H2 is not a compound.
What is it is only made up of 1 type of atom (Hydrogen), so therefore it is an element, not a compound.
A molecule that has 2 or more elements that are chemically bonded together.
What is a Compound?
The _____ are the most reactive elements that are in the first group of the Periodic Table.
F2
What is an Element? (Fluoride Gas)
K, L, M, and N combined can hold up to ___ electrons.
What is 60?
Explain the differences between Physical Changes and Chemical Changes.
Physical: Color, taste, anything that you can observe with your senses, phase changes (like states of matter)
Chemical: Reacts, makes a new substance, breaks down a substance, something new.
A molecule that has an uneven amount of protons and electrons, giving it a charge.
What is an Ion?
What is 118?
CO
What is a Compound? (Carbon Monoxide)
Scientists theorize that energy level ___ can hold up to ___ electrons.
What is energy level Q and 98 electrons?
C12H22O11 is ____, a _____ that has ___ different types of atoms.
What is (1) Sugar, a (2) compound that has (3) 3 different types of atoms.