Atomic IDs
Name this element:
11 protons, 12 neutrons, and 11 electrons.
Sodium
An atom has 17 protons and 20 neutrons.
Write its isotope notation.
Cl-37
TRIPLE JEOPARDY!
What is an ion?
An atom that has gained or lost electrons.
Define the mole.
A counting word; 6.02 x 1023 items
TRIPLE! Which scientist coined the term atomos, "not to be cut"?
Democritus
Name the element:
An atom has 17 protons and 20 neutrons.
Chlorine
An element with 6 protons has 8 neutrons.
Write the isotope notation.
C-14
An atom that has gained 3 electrons has a charge of ___.
-3
Define Molar Mass
The number of grams in one mole of a substance; based on atomic mass
DOUBLE!
What’s a chemist’s favorite type of dog?
A LAB!
DOUBLE: Name the element:
An element is neutral and has 16 electrons.
Sulfur
DOUBLE! Carbon has 6 protons. One isotope has 6 neutrons, and another has 8 neutrons.
Question: Write the isotope notation for both isotopes.
C-12 and C-14
DOUBLE!
How many electrons does a Si+4 ion have?
10 electrons
How many moles are in 1.24 x 1024 atoms?
2 moles
QUADRUPLE!
How do you know if a chemistry joke worked?
You get a reaction.
Name this element:
An element with 6 protons has 8 neutrons.
Carbon
An isotope has 35 protons, 45 neutrons, and 35 electrons.
Question: Identify the element and write the isotope notation.
Br-80
DOUBLE!
How many electrons does S-2 have?
18 electrons
How many grams are in 5.0 moles of Lithium?
~35 grams
Name 4 (four) pieces of PERSONAL protection equipment, PPE.
Lab coat, apron, goggles, closed-toe shoes, gloves, aspirator, face shield, hair ties
QUADRUPLE JEOPARDY!
Give the name, mass, charge, and location of each of the 3 subatomic particles.
Protons, 1 amu, +1, nucleus
Neutrons, 1 amu, 0 charge, nucleus
Electrons, 0 amu, -1 charge, e-cloud/energy levels
QUADRUPLE JEOPARDY!
Why are mass numbers written without decimal places, unlike average atomic mass?
Mass numbers are the sum of proton and neutron counts. Avg atomic mass is the weighted average of masses of isotopes.
QUINTUPLE JEOPARDY!
What model shows us the location of electrons in an atom?
Bohr Model/Planetary Model
How many atoms are in 4.0 moles of hydrogen?
2.4 x 1024 atoms
QUADRUPLE!
Name a school I, Ms.Harris, attended!
TSU, TAMU, UH, SEM