Ions/isotopes
Electron loss is indicated by a _____ charge, creating a(n) ______
positive, cation
In a chemical formula, what does the subscript tell you?
The atoms of a specific element present in the molecule
The basic SI unit of mass.
kilogram
Which atom has bigger atomic size- Cl or Ar?
Cl
Write the correct compound name for ZnCl2?
Zinc Chloride
This number states the number of protons in an atom.
What is the atomic number.
Calcium-43 has how many neutrons?
23
Name the compound SF6
Sulfur hexafluoride
The basic SI unit of length.
meter
Which atom has the largest radius: Pt, Au, Cd, Sn, Rf, Sr
Rf
Which law? "Matter cannot be created or destroyed."
The Law of Conservation of Mass
Anything that has mass and volume is called....
matter
Anions have more _________ than _______.
What is "more electrons than protons".
How many oxygen atoms are in 4K2CO3?
12
How many mg are in 4g?
4000
Highest ionization energy: Bismuth, Antimony, Phosphorus
Phosphorus
Discovered that electrons have a negative charge.
JJ Thompson
How do you find the volume of an irregular solid?
Displacement
If Tin (Sn) atomic number is 50, and it has 49 neutrons, how would you write this isotope?
Sn-99
Which is the chemical formula for Magnesium chloride?
MgCl2
How many constants are needed in an experiment and why?
As many as are necessary so that we can ensure that there is only one independent variable.
Atomic radius is the _____ distance between the atom’s nucleus and the _____ of the atom.
Shortest; Outermost shell/energy level
He is credited with starting modern atomic theory and bringing back the concept of "atoms."
John Dalton
What is the name for the phase change that explains why water collects on the outside of a drink with ice?
Condensation
Cu has 31 electrons. How do you denote the charge on this atom?
Cu2-
Which is the formula for ammonium chloride?
NH4Cl
What is a reason a scientist might reject a scientific theory
New evidence!
What is the largest atom?
Fr
His model was the first to establish that the nucleus is the center of the atom.
Ernest Rutherford
Bonus: let me read it- what was his experiment called?
Is flammability a physical/chemical property/change?
Chemical property