Vocabulary Science Dudes Periodic Trends Scaringi’s Favorites Electrons

What is the Atomic Number and the amount of Neutrons in the following Atom?

Atomic Number = 36 Neutrons = 48

What is ionization energy?

The amount of energy needed to remove an electron from an atom

Red Light has a ____ wavelength and a _____ frequency compared to Violet light

Long Wavelength Low Frequency

Does Bromine Gain or lose electrons? Is it a metal, nonmetal, or metalloid?

Gains electrons and becomes negative in charge Nonmetal

This “effect” causes atoms on the bottom of the periodic Table to have a small ionization energy

What is the shielding effect?

The model of “atomos” was used by which scientist(s)

Who was Democritus and Dalton?

The 2 nd law of this scientist was changed with the discovery of subatomic particles ie. Protons, neutrons, and electrons

Who was Dalton?

Which scientist had an atomic model with a positive Nucleus and a Negative electron cloud making up the majority of their space

Who was Rutherford?

Hydrogen was electrified to observe electrons jumping energy levels

Who was Niels Bohr?

Draw and label Thomson’s model of the Atom

The plum pudding model A positively charged ball with negatively charged electrons

This family has two valence electrons.

What are the Alkaline Earth Metals?

Silicon shares, rather than loses or gains, electrons.

What is a Metalloid?

This family is the entire d Block

What are the Transition Metals

This family has valence electrons that are s2p5

What are the Halogens?

This is a family of nonreactive gasses

What are the noble gasses?

The plateau during the heating of a solid pure substance represents…

The point at which both solids and liquids are found The Melting Point

A gas evolves with a strong odor from two chemicals being mixed. There is a lot of heat produced

What is an exothermic chemical change

These letters represent the heating of the solid

What is A-B

Calculate the Atomic Mass of Copper Given the following info. Cu 63.0 has an abundance of 69.2% Cu 65.0 has an abundance of 30.8% Sig Figs and Units!!!!!

Copper’s Atomic Mass 63.6 amu You need to include amu to be correct!! Sig Figs!!!!

What does mass measure?

The amount of matter in a substance

What truly determines if an atom is a metal?

Low ionization energy and a large atomic radius

The Lewis Dot Structure for Aluminum

.. Al.

What is the Electron Configuration and Lewis Dot Structure for Tin Use both long hand and nobel gas configuration

Sn: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 2 Sn: [Kr] 5s 2 4d 10 5p 2

Why don’t we draw a Bohr model for Titanium?

Titanium is in the d-block. Bohr models stop at Ca. The 3d electrons go back to the third energy level rather than continuing on the 4 th energy level

If You remove an electron from Potassium, how many Valence electrons does it have? Why would potassium lose an electron?

Eight Potassium lost one valence to have the same electron configuration as Argon, thus having eight electrons.