The Atom
Periodic Table
Charges
Miscellaneous/Review
Labels
100
What particles make up the nucleus of an atom?
Protons
Neutrons
100
The rows in a periodic table are called.
Periods
100
Subatomic Particles
Particles with a positive charge in an atom are called what?
Protons
100
water (H2O)
How many total atoms are present in a molecule of water?
3 Total atoms
2 Hydrogen
1 Oxygen
100
What is the 8 in this image called and represent?
Atomic number-# of protons
200
What are the particles located outside the nucleus of an atom?
Electrons
200
What do the atoms in the same period tell us?
They all share the same # of levels (or shells-orbitals)
200
Particles with negative charge in an atom are called what?
Electrons
200
________ form when 2 or more atoms form chemical bonds to form a new substance.
Molecules
200
What is the O in this image called?
The symbol(atomic Symbol)
300
What type of particles in the atom determine the type of element (the atomic number)?
Protons
300
The columns in a periodic table are called...
Groups
300
Particles with no charge in an atom are called what?
Neutrons
300
________ form when 2 or more elements (different atoms) form chemical bonds to form a new substance.
Compounds
300
What is the word Oxygen in this image called?
The elements name.
400
What are the rings around the nucleus called?
Levels, orbitals or shells
400
What do the atoms in the same group tell us?
They all have the same number of valance electrons.
400
The charge of an atom with 8 protons, 8 neutrons, and 8 electrons.
0=neutral
400
The Periodic Table of the Elements
What two atoms are located in the first period?
Period #1
H and He
Hydrogen and Helium
400
What is the 15.99 in this image called and represent?
The atomic mass.
It equals the sum of the protons and nuetrons.
500
What is the center of an atom called?
The nucleus.
500
Who created the Periodic Table?
Dimitri Mendeleev
500
The EXACT charge of an atom with 8 Protons, 7 Neutrons, and 6 electrons. (Charge and #)
+2
500
What are valance electrons?
The electrons in the outermost shell of an atom.
500
How is the periodic table organized?
Increasing atomic #.