Atoms
the 3 subatomic particles
what is a proton, neutron, and electron
This is how atoms create compounds.
what is share electrons?
These are vertical columns on a periodic table
What is a group?
The right side of the chemical equation is called this.
What is products?
When a substance changes into another substance with different properties
What is a chemical change?
Protons determine this in an atom.
What is the atomic number or identity of the atom?
Atoms with the same number of protons but a different number of nuetrons.
What are isotopes?
The most reactive NONmetal.
What is Fluorine?
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?
These are found on the left side of a chemical equation
What is the reactants?
This happens to reactivity of elements are you move down group 1 on the periodic table?
What is the reactivity of elements increases?
When the number of electrons and protons are equal.
What is a neutral atom or neutral charge?
At element that is typically hard, shiny, conducts electricity and heat and will tends to become cations.
What are metals?
This Group has 7 valence electrons.
What are the Halogens?
The atomic number is equal to the number of 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
C6H12O6 --> The six is called this.
What is a subscript?
This is a mixture that is uniform throughout.
What is a homogeneous mixture?
An element that is usually brittle or is a gas, does NOT conduct heat or electricity well, and is not malleable.
What is a non metal?
How many atoms in C2H3O2-
What is 7 atoms?
AlCl3 has this many atoms.
What is 4?
Which particle has the lightest 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?
6CO2 + 6H2O → C6H12O6 + 6O2 has how many oxygen in the reactants
What is 18?
This element has properties most similar to Sulfur.
What are Oxygen, Selenium, Tellerium, Pollonium?
The average mass of neutrons and protons in an atom.
What is atomic mass?
The way the surface of a substance will reflect light.
What is luster?
He created the basis for our modern periodic table.
Dmitri Mendeleev
the outer most electrons
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?
2C4H10O has how many atoms
What is 30?
This is the difference between a compound and a mixture.
What is mixtures can be separated by physical means and compounds are separated by chemical means?
This increases from Lithium to Francium.
How does reactivity change in group 1?
The element that is in the 4th period and in Group 13.
What is gallium?
This group shares characteristics with metals and nonmetals.
What are the metalloids?