Scientists. Scientists Models Atomic Theory.

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Presentation transcript:

Scientists

Models

Atomic Theory

The Periodic Table

Light

Vocab

Scientists Atomic Theory The Periodic Table Models Light Vocab $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500

Name the scientists in chronological order.

Dalton,Thomson, Rutherford, Chadwick, and Bohr

Who used gold foil to discover the nucleus?

Rutherford

Which scientists used this experiment?

Thomson

He suspected that the emission spectrum provided info about the structure of atoms

Bohr

Video daily double!

http://www. youtube. com/watch. v=gO9CKkbLUiIhttp://www. youtube http://www.youtube.com/watch?v=gO9CKkbLUiIhttp://www.youtube.com/watch?v=gO9CKkbLUiI What did Rutherford find was causing the deflections of alpha particles? Why did most of the alpha particles go straight through the atom?

The very small, dense, positively charged nucleus The very small, dense, positively charged nucleus. Most of the alpha particles went through b/c the electron cloud is mostly empty space Like a marble in a football field.

Who’s model is the solid sphere?

Dalton

Name the model which has a nucleus surrounded by electrons on an orbit.

Bohr's planetary model

Name the model that resembles choc chip cookie dough.

Thomson's Plum Pudding model

Who developed the “nuclear” model?

Rutherford

What is an electron cloud?

A region where electrons may exist. It has no definite borders.

Chadwick discovered which heavy particle in the atom.

The neutron

One of Dalton’s Principles incorrectly stated that atoms of a given element are identical. Why is this incorrect? Give 2 reasons.

Because isotopes have a different # of neutrons have different properties. Ions of a given element have a different # of electrons and have different properties.

Dalton's theory that atoms combine in simple whole-number ratios, was based on this law…

The Law of Definite Proportions

The law that states that atoms merely rearrange in chemical reactions…

The Law of Conservation of Mass

Which law indicates that generic acetaminophen is the same as Tylenol

The Law of Definite Proportions

Look at the periodic table Look at the periodic table. What does the whole number in each block represent? (two answers)

The number of protons/ atomic number

When an ion has a -1 charge, it has one less________.

proton

What is the number of protons, neutrons, and electrons in a bromine-80 ion with a negative charge?

35 p, 45 n, 36 e

Based on the periodic table, the most abundant isotope of magnesium is the magnesium- _?__ atom.

The magnesium-24 atom b/c the average is closest to 24.

Write the noble gas configuration for chlorine, Cl.

[Ne]3s2 3p5

The creation of the concept of these rings helped us understand how light is emitted.

Bohr’s orbits

Who’s rule says to spread out electrons in orbitals before pairing them up?

Hund’s Rule

Explain how light (or any type of radiation) is given off.

Electrons gain energy and move to the excited state, then return to the ground state and give off that energy as light.

Daily Double!!

What is the visible spectrum?

The very small range of radiation that our eyes see (ROYGBIV)

These are distinct lines of color, unique to each element, that are produced when light is passed through a prism.

The line emission spectrum

What is mass number?

The number of protons and neutrons in the nucleus.

What are the shapes of the s and p orbitals?

spherical and dumbell

What is this type of symbol called (not the element)

The nuclear symbol which tells the specifics of the structure of the isotope

Which particles in the atom have coulombic forces of attraction?

The proton and the electron; opposites attract.

Define characteristic physical properties?

Properties that are unique to each element Properties that are unique to each element. Line emission spectra, density, and boiling point are example.

Double Jeopardy!!

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Write the Final Question Here Jeopardy Write the Final Question Here

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