States of Matter
This state of matter has a fixed shape and a fixed volume.
What is a solid?
This subatomic particle has no charge.
What is a neutron?
What are periods?
This type of bond forms between nonmetals by the sharing of electrons.
Covalent bonds
The substances at the start of the chemical reactions.
Reactants
This state takes the shape of its container but has a fixed volume
What is a liquid?
The atomic number equals to the number of these in the atom.
What are protons?
This element is the most electronegative on the periodic table.
What is fluorine?
This type of bond forms between metal and nonmetal when electrons are transferred.
Ionic bonds
The number written in front of a chemical formula in an equation.
Coefficient
Gas changing to a liquid is called this.
Two atoms of the same element with different numbers of neutrons are called this.
What are isotopes?
According to ionic radius, cations become ____________ in size compared to their atoms.
Smaller
Covalent
AB + C --> AC + B
Single displacement reaction
One sign of a chemical reaction is when a solid suddenly forms.
What is a precipitate?
The total number of protons + neutrons in an atom is called this.
What is the mass number?
Metallic character _____________ as you move across a period.
Decreases
Draw the Lewis dot structure of NH3
N would have 5 dots, 3 connected to each Hydrogen.
Balance the following equation:
Rb + RbNO3 --> Rb2O + N2
Rb + 2RbNO3 --> 3Rb2O + N2
Burning paper represents this type of change.
What is a chemical change?
Atoms in groups 15, 16, and 17 form this type of ion.
What are anions?
_________________ is defined as the distance from the nucleus of an atom to its outer shell. This decreases across a period.
Atomic radius
Find the formula of the following ionic compound Magnesium phosphide.
Mg3P2
Balance the following equation and identify its type:
C3H8 + O2 --> CO2 + H2O
C3H8 + 5O2 --> 3CO2 + 4H2O
Combustion reaction