Today in ScienceYou will Need:•Pencil, Periodic Table•Power Notes – Atomic Structure– 2 page 4 sides- Picked up yesterday(Wed.)•Atomic Structure – Application Part 2 – Bookshelf-1 page 2 sides

Review•Which subatomic particle in the atom has a positive charge?•Which subatomic particles are found in the nucleus of the atom?•Of the three major subatomic particle in the atom, which is the smallest?•Why are atoms found on the periodic table neutral….why do they not have any charge?•Which scientist found that the atom was mostly empty space?

Review•Which subatomic particle “IDENTIFIES” which element it represents?•Which subatomic particle is neutrally charged and found in the nucleus?•Which scientist named his model the “Plum Pudding Model”?•What does the atomic number on the periodic table represent about the atomic structure?

Review•When an atom has more electrons than protons it has what charge?•What do you call an atom that does not have the same number of electrons and protons?• Protium, Deuterium and Tritium are all forms of Hydrogen. How do we know they are all Hydrogen?•When thee are different forms of the same element with different amounts of neutrons what do we call them?

Review•Who was the scientist that created the 1st Modern Atomic Theory?• What particles does the Atomic Mass represent on the Periodic Table?• How many protons does Fluorine have?• How many electrons does Calcium have if it is a neutral atom?•What is the chemical symbol for GOLD?• Would I add, subtract, multiply or divide to find the volume of a substance if I knew the mass and density?

Review•Slicing a piece of Sodium Chloride in half. Physical or Chemical?• Decaying trash. Physical or Chemical?• How many neutrons are in the most common form of Lithium?• Most of the MASS in the atom is found in what part?• The phase of matter dependends on what?• The most abundant form of matter in the universe is _______________?

All atoms found on the Periodic Table are

Isotope

Hydrogen has 3 natural occurring ISOTOPES: Protium, Deuterium and Tritium

• Neutral – same # of protons(+) and # of electrons(-)

• Atoms of the same element with same number of protons and different number of neutrons.

nucleus

nucleus

nucleus

Protium

Trit ium

Deuterium

All are

HYDROGEN

because al l have

1 proton.

Proton

Neutron

Atomic MASS

IONS

REVIEW & REFLECT

• On the Periodic Table represents a weighted average of the mass of all naturally occurring isotopes of each element. (based on mass and abundance of each isotope).

• When atoms gain or lose electrons they become charged. (number of protons (+) and electrons (-) particles are NOT EQUAL)

+ -

Coloring the Periodic Table

*Textbook pg 196-197 – Use the key

• Outline each box in the following way:

• Metalloids – in BLUE• Nonmetals – in ORANGE• Metals – in GREEN

METALS- lose electrons

NONMETALS- gain electrons

Metalloids

Atomic Structure Application

• The ATOMIC NUMBER of an element is the number of PROTONS in the center, nucleus of an atom.

• It is the PROTONS that IDENTIFY which element is on the periodic table.

• NO TWO elements have the same ATOMIC NUMBER. (proton count)

Number of protons + neutrons

Can also be # of electrons if neutral

Use your Periodic table to complete the application exercises. You may work as a

group to answer the questions.

#2 – Actually 9 elements that start with the letter “C”

HomeworkPower Notes + Application Part 2– Please staple and turn in today.

None unless you owe me something

Do You see HOW the periodic table and the Atomic Structure are RELATED?