Atomic Structure
This is the center of an atom, where protons and neutrons are located.
Nucleus
Most elements on the left side of the periodic table belong to this classification.
Metals
This type of bond forms when two nonmetals share electrons.
Covalent
This observable change is a common sign that a chemical reaction has taken place.
color change
This state of matter has both a definite shape and a definite volume.
Solid
These two types of subatomic particles are found in the nucleus of an atom.
Protons and Neutrons
This is the name of the elements found in Group 1.
Alkali Metals
An ionic bond is formed by this process.
Transferring Electrons
In a balanced chemical equation, the number of atoms on each side must be this.
Equal
In this state, particles move freely and spread far apart.
Gas
Which subatomic particle has a negative charge.
Electron
A calcium ion that loses two electrons has this charge.
+2
This is the process where a solid changes directly into a gas.
Sublimation
The atomic number of an element tells you this about its atoms.
This element is most likely to react with sodium to form a salt.
Chlorine
In a water molecule (H₂O), these types of bonds exist between hydrogen and oxygen.
Covalent
The reaction 2H₂ + O₂ → 2H₂O is an example of this type of reaction.
Synthesis
This occurs when a liquid reaches its boiling point.
Boiling
Isotopes differ in the number of....
Neutrons
Elements in the same group share these characteristics.
Properties
This is the measure of the average kinetic energy of particles in a substance.
Temerature