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Atoms
Density
Electrons
Periodic Table
Acids and Bases
100
a subatomic particle with a positive charge
What is a proton?
100
mass divided by volume
What is density?
100
the number of valence electrons for elements in group 2
What is 2?
100
shiny and good conductors of electricity
What is a metal?
100
ph is below 7
What is an acid?
200
A subatomic particle with a negative charge and is found in an energy level or electron cloud.
What is an electron?
200
density times volume
What is mass?
200
the number of valence electrons for elements in group 17
What is 7?
200
Mg
What is magnesium?
200
ph is above 7
What is a base?
300
a subatomic particle that is found by subtracting the the atomic number from the atomic mass and it is found in the nucleus
What is a neutron?
300
An object with a density of 10 g/cm3 is placed in a liquid with a density of 1 g/cm3. What will happen to the object?
What is sink?
300
the number of electrons that can go in the third electron cloud
What is 18?
300
the name for group 2 elements in the periodic table
What is alkaline earth metals?
300
sodium hydroxide
What is a base?
400
an atom with a different number of neutrons from the original atom
What is an isotope?
400
the density of water
What is 1.0 g/cm3?
400
the number of electrons that can go in the 4th electron cloud
What is 32?
400
the name of the most unstable nonmetal group
What is halogens/halides?
400
the ion produced from an acid
What is hydronium?
500
an element that has 8 protons, 8 electrons and 8 neutrons
What is oxygen?
500
Balsa wood has a density less than water. What will happen to balsa wood when it is placed in water?
What is float?
500
the electrons found in the outermost electron cloud
What is valence electron?
500
the most unstable metal group in the periodic table
What is alkali metals?
500
the ion produced from a base
What is hydroxide?