Atomic models
All matter of four elements
What is air, water, earth, and fire
Where can you find the mass number?
What is the atoms mass is found in the nucleus and equal the sum of the protons plus neutrons (mass # = #p+#n)
Atoms can gain or lose electrons to become charged particles called...
What is ions
Electrons further from the nucleus have more ___
What is energy
What are Valence electrons?
The electrons in the outermost electrons shell of an atom
Rutherford learned what in his experiment
What is most alpha particles pass through the gold foil without interference. A few particles are deflected.
What does the electron configuration show?
What is shows the number and arrangement of electrons in energy level's
Monatomic ions- ___ atoms
What is one
Electrons can gain energy and "___" to higher levels
What is jump
What does the Octet Rule say?
What is, that atoms like to have full outer shells of only eight electrons.
What was John Dalton’s experiment/model?
What is the cannonball model
What does the atomic number equal to?
What is atomic number equal to the number of protons
Polyatomic ions- __ or ___ atoms
What is two/more
How much energy does the 1st shell have?
What is low energy
What is a lewis dot structure?
A lewis dot structure is a quick and easy diagram that shows the valence electrons in an element.
What was Bohr’S proposal?
What is Electrons orbit the nucleus in distinct energy levels
What are Isotopes?
What is atoms of the same elements with different numbers of neutrons
Metals tend to become positive ions, called ____ by losing electrons
How many protons and neutrons does a hydrogen(H-1) atom have?
What is one protons and no neutrons
Lewis dot diagrams use ___ to represent valence electrons around an atomic symbol.
What is dots
What are the two types of Electromagnetic Radiation?
what is Continuous Spectrum and Bright Line Spectrum
Find chlorine's average atomic mass if approximately 8 of every 10 atoms are chlorines-35 and 2 are chlorine-37
what is 35.40 amu
How many protons and electrons does a sodium atom have?
What is 11 protons and 11 electrons
When in the ground state, how many electrons does a hydrogen atom have?
What is one electon
What are the two rules for Lewis dot diagrams?
- No side can have more than two dots because each orbital can only hold two electrons.
- When filling the sides of the element symbol each side gets one dot before doubling up. Exceptions are hydrogen and helium.