Atomic Structure
This subatomic particle has a positive charge.
What is a Proton?
Atomic radius generally increases in this direction on the periodic table.
What is down a group?
This type of bond involves the transfer of electrons.
What is an ionic bond?
When heat is produced, light is emitted, or a precipitate is formed this is an indication of this.
What is a chemical change?
This scale measures how acidic or basic a substance is.
What is a pH scale?
This particle is found outside the nucleus in the electron cloud and has a negative charge.
What is an electron?
Elements on the left side of the periodic table are generally these.
What are metals?
This type of bond forms when atoms share electrons.
What is a covalent bond?
A transformation that alters a substance's appearance or state, but not its chemical composition.
What is a physical change?
Acids have a pH lower than this number.
What is 7?
An uncharged subatomic particle found in the nucleus of every atom. (Except Hydrogen)
What is a neutron?
This trend measures how strongly an atom attracts electrons.
What is electronegativity?
The electrons in the outermost energy level are called these.
What are valence electrons?
This number placed in front of a formula balances a chemical equation.
What is a coefficient?
This substance has a pH higher than 7.
What is a base?
The number of protons in an atom is called this.
What is the atomic number?
This group contains the most reactive nonmetals.
What are halogens?
This intermolecular force is responsible for water’s unusual properties.
What is hydrogen bonding?
A reaction where two substances combine to form one product is called this.
What is a synthesis reaction?
Bases produce these ions in water.
What are hydroxide ions?
Atoms of the same element with different numbers of neutrons are called these.
What are isotopes?
This trend increases across a period because atoms hold electrons more tightly.
What is ionization energy?
A hard, crystalline compound composed of positive metal ions and negative non-metal ions.
What is an ionic salt?
This law states matter cannot be created or destroyed.
What is the Law of Conservation of Mass?
This process occurs when an acid reacts with a base to form water and salt.
What is neutralization?