Atoms
the 3 subatomic particles
what is a proton, neutron, and electron
This is how atoms react/bond
what is share electrons?
These are vertical columns on a periodic table
What is a group?
Physical or chemical property?
Copper metal reacts with nitric acid to make a brown gas.
What is chemical?
If an object has a mass of 15 g and it takes up 5 mL in a beaker, what is its density?
What is 3 g/mL
the location of protons and neutrons
What is the nucleus?
This number tells you the number of protons
What is the atomic number?
These are horizontal on a periodic table
What is a period?
Physical or chemical property?
Ethanol has a low viscosity
What is a physical property?
This happens to reactivity of elements are you move down periods on the periodic table?
What is the reactivity of elements increases?
The atomic number is equal to these positive particles
What is a proton?
These determine how reactive an element is
What are valence electrons?
The atomic number tells us how many __________ an element has in its nucleus.
what is protons
What is it called when metals can be pulled into wires.
What is ductility?
What is more dense 1 gold bar or 5 gold bars?
What is a the same density?
Which particle has no mass
What is Electron
Name 1 element that acts similar to Ar
What is helium, neon, krypton, xenon or radon
This is how many electrons an atom wants to have and will combine with another element to make this number.
What is 8 electrons?
Physical or chemical property?
Helium floats because it is less dense than air.
What is a physical property?
This element has properties most similar to Sulfur.
What are Oxygen, Selenium, Tellerium, Pollonium?
the outer most electrons in a shell are called
What are valence electrons?
This is the number of neutrons in the element Cl (chlorine).
What is 18?
These are the most reactive non metal group
what is group 17? (Halogens)
What is it called when substances can manipulated and bent easily, often used to be made into flat sheets.
What is malleability?
What is an atomic mass of 24?