Atomic Structure
The middle of an atom
Alkali metals are extremely reactive because they have this number of valence electrons
What is one valence electron?
Mixtures are combined in this way
What is physically combined?
The four states of matter
What is solid, liquid, gas, and plasma
What scientist is credited with organizing the periodic table?
Who is Mendeleev?
Electrons orbit the nucleus in these
What are shells or energy levels?
The group on the periodic table that is the LEAST reactive?
What is group 18 or the Noble Gases?
Compounds are combined in this way
What is chemically combined?
The most energetic form of matter
What is plasma?
The horizontal rows of the periodic table
The subatomic particle with a neutral charge
What is a neutron?
The formula for finding number of neutrons
What is mass - atomic number?
An element in its pure form that can be bonded to itself
What is a diatomic element?
The phase change moving from a gas to a liquid
What is condensing?
Elements in the same group have the same number of these
What is valence electrons?
What is an electron?
Atomic mass is composed of these two subatomic particles
What is protons and neutrons?
This represents how many atoms of each element are present in a compound
What is a chemical formula?
Moving from a solid directly to a gas
What is sublimation?
One of two mnemonic devices to remember the diatomic elements
What is "I Have No Bright or CLever Friends" or the "BrINClHOF" twins?
The subatomic particle with a positive charge
What is a proton?
The periodic table is organized by this
What is atomic number?
These are the two types of mixtures
What is homogeneous and heterogeneous?
All states of matter have this in common
During a chemical reaction, elements on the far left of the periodic table tend to do this
What is lose electrons?