Atomic Anatomy
These two subatomic particles reside inside the nucleus of an atom.
What are protons and neutrons?
This is the smallest complete building block of an element that retains its properties.
What is an atom?
In this state of matter, particles are packed tightly together and can only vibrate in fixed positions.
What is a solid?
This is a distinct group of two or more atoms chemically bonded together.
What is a molecule?
Ice melting or a logger cutting down a tree are examples of this type of change, because no new substance is made.
What is a physical change?
This subatomic particle has a negative charge and orbits the nucleus.
What is an electron?
The horizontal rows running across the periodic table are called this.
What are periods?
This state of matter has no definite shape and no definite volume, allowing its particles to spread out and move completely freely.
What is a gas?
This type of bond forms when atoms share electrons, such as the bonds holding a water molecule together.
What is a covalent bond?
This fundamental law states that matter cannot be created or destroyed in a chemical reaction, only rearranged.
What is the Law of Conservation of Mass?
(Accept: Conservation of Matter)
This number on the periodic table tells you exactly how many protons are in an atom's nucleus.
What is the atomic number?
Elements found in the same vertical column are said to belong to the same group or this "household" name.
What is a family?
Accept Group
This term describes the phase change when a gas loses thermal energy and transforms directly into a liquid.
What is condensation?
The small number written to the lower right of an element's symbol in a chemical formula indicating how many atoms of that element are present.
What is a subscript?
A combination of two or more substances that are physically blended together but not chemically bonded, such as a salad or salt water.
What is a mixture?
Most of the volume of an atom consists of this.
What is empty space?
(Accept: the electron cloud)
This Russian chemist is widely credited with creating the first organized framework for the periodic table.
Who is Dmitri Mendeleev?
This property describes the average kinetic energy of the individual particles in a substance.
What is temperature?
This type of chemical bond forms when one or more electrons are entirely transferred from a metal atom to a non-metal atom.
What is an ionic bond?
This is the name given to the starting materials on the left side of a chemical equation.
What are reactants?
If an atom has 6 protons, 6 neutrons, and 6 electrons, this is its total overall electrical charge.
What is zero?
(Accept: Neutral)
Elements located on the jagged zigzag line of the periodic table that share properties of both metals and non-metals are called this.
What are metalloids?
This super-heated, ionized gas state of matter is commonly found inside neon signs and stars.
What is plasma?
In the chemical formula 2H2O, this is the name given to the large number in front, indicating the total number of water molecules.
What is a coefficient?
If a neutral atom of Carbon has an atomic number of 6 and a mass number of 14, calculate the exact number of neutrons found in its nucleus.
What is 8 neutrons?
(Mass number 14 - Atomic number 6 = 8)