Elementally
Punny
Punny
Answer with the element’s symbol:
What you do to a wrinkled shirt.
The first scientist to propose “atoms.”
Dalton - Democritus was NOT a scientist. :)
Equal to the number of neutrons plus protons
The number of PROTONS in
188O
8 protons
Ions are formed by atoms gaining or losing ___________ .
electrons
Answer with the element’s symbol:
A police officer’s favorite element.
copper (Cu) OR polonium (Po)
This person proposed the ideas of the ground state and excited state.
Draw the atomic model.
Bohr (electrons in orbits)
(should draw a positive nucleus with rings around it where electrons are)
Vocab word that describes atoms of the same element with different masses
isotopes
The number of NEUTRONS in
188O
10 neutrons
Name for an atom that has lost an electron.
cation
Answer with the element’s symbol:
What a doctor does to their patients.
He, Cm, or Ba
(If you can’t helium or curium, you barium!)
What is the name of current model? (looks like a fuzzy cloud with weird shape orbitals)
Electron Cloud or
Quantum Mechanical Model
What does the decimal number on the periodic table represent?
(average) atomic mass
Are the following elements isotopes of the same element or different elements?
Element A: 12 protons 12 neutrons
Element B: 11 protons 12 neutrons
•Different elements (different protons)
Cation or anion?
18 neutrons
16 protons
18 electrons
anion
(gained 2 electrons means more electrons than protons and negative charge)
Answer with the element’s symbol:
Your brother or mine.
Br
(Bromine)
Scientist who proposed that the atom is mostly empty space.
Rutherford
The protons and neutrons are in a small dense area called the nucleus, this means most of the atom is empty space (stadium analogy).
Which of oxygen 3 stable isotopes would you expect to have the highest percent abundance?
168O, 178O, 188O
168O,
The average atomic mass of O on the periodic table is 16.00 amu. Because it is a weighted average, the atomic mass is always closest to the highest abundance isotope.
The total number of particles in the nucleus of an ion that contains:
26 protons
24 electrons
31 neutrons
57
(protons + neutrons)
The number of electrons in:
5324Cr2+
22 electrons
(+2 means lost two electrons compared to 24 protons)
Answer with the element’s symbol:
The most “tasty” element.
Tungsten (W)
Give the name of the scientist and draw the plum pudding model
Thomson
A ball of positve matter with negative electrons embedded in it.
An unknown metal has the following stable isotopes. Calculate its average atomic mass.
X-40 (39.962 amu, 96.9%)
X-42 (41.985 amu, 0.647%)
X-43 (42.959 amu, 0.135%)
X-44 (43.955 amu, 2.09%)
BONUS: Give the metal’s name.
39.97 amu, Ca (Ar is not a metal!)
(39.962 amu*.969) +
(41.985 amu+0.00647) +
(42.959 amu*0.00135) +
(43.955 amu*0.0209)
A mystery element contains 21 neutrons, 19 protons, and 18 electrons.
Write its isotope notation.
4019K1+ or 4019K+1
Draw a BOHR model for fluorine-21 that has a charge of -1
the nucleus should have 9 p+, 12 n
1st energy level has 2 electrons
2nd energy level has 8 electrons