Organization of Periodic Table
This number matches the number of protons that are in an elelment.
Atomic Number
This organizes all the elements in a similar way according to certain trends.
Periodic Table
A bond formed when atoms share one or more pairs of electrons; usually between two nonmentals
Covalent
A property of a substance that describes the relationship between a substance's mass and its volume
Density
Chemical
A horizonal row of elements in the periodic table?
Period
Atoms in the same family on the periodic table have similar number of valence electrons as well as similar properties. True or False?
True
A bond formed by the attraction between oppositely charged ions; usually between a metal and a nonmetal
Ionic
What is the density of water?
1g/mL
Ice melting in a glass of water is what kind of change?
Physical
A vertical column of elements in the periodic table.
Group or Family
Carbon and other nonmetals are found in which area of the periodic table?
On the right side
What is the name of NaBr? Is it ionic or covalent?
Sodium Bromide; Ionic
The ability or tendency of an object to float in water or air or some other fluid.
Buoyancy
P4 + 3 O2 = 2 P2O3 is what type of reaction?
Synthesis
The total number of protons and neutrons in the nucleus is called the
Mass Number
Alkali metals are extremely reactive because they
only have one valence electrons that can be given to another element
What is the name of CO2? Is it ionic or covalent?
Carbon Dioxide; covalent
A less dense object will float or sink?
Float
2 NO2 = 2 O2 + N2 is what kind of chemical reaction?
Decomposition
The organization of the periodic table is based on
The Number of Protons in an Atom
Most halogens for compounds by
gaining an electron
What is the chemical formula for Copper(II) Chloride? Is it ionic or covalent?
CuCl2; Ionic
What is the density of a box that has a mass of 35g and a volume of 17cmᶟ
2 g/ cmᶟ
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
Double Replacement