Atomic Models
A term meaning indivisible matter
atom or atomos
Rows of elements demonstrate a transition in the properties of elements from metal to metalloid to non metal to noble gas, with the next row repeating this transition. Because each row demonstrates this transition, a row is referred to as what?
period
According to Laviossiere's law of the conservation of mass, the sum of the mass of the products must equal what?
the sum of the masses of the reactants
Names of the three types of nuclear radiation
alpha beta gamma
metals tend to form this kind of bond with other metals
metallic
A term meaning love of knowledge about the natural world
philosophy or natural philosophy
Each column possesses elements that demonstrate similar chemical properties. This is because the elements in a column have what count in common?
number of valence electrons or valence electrons or valence
If a chemical equation contains an equal number of atoms of each element in both the products and the reactants, then the equation is said to be what?
balanced
The energy of the sun is produced through this type of nuclear reaction
fusion or nuclear fusion
metals tend to form this kind of bonds with nonmetals
ionic
Philosopher who asserted that matter could be divided without ever arriving at a further indivisible form or size
Aristotle
Elements in the same period have the same count of what?
number of energy levels containing electrons or number of energy levels
A kind of chemical formula that indicates the number of atoms of each element in a substance as well as how the atoms are bound together
structural formula
In this type of nuclear reaction, mass number remains constant and atomic number changes
beta
a type of bond that forms when two pairs of electrons are shared among two nonmetal atoms
double covalent or doubly covalent
Darwin provided experimental that the atoms of different elements differ from elements on the basis of what property?
mass
These elements are crushable, dull and conduct heat and electricity poorly
When a chemical reaction occurs, bonds among atoms in each reactant break, then the atoms rearrange themselves, and then these form to produce product compounds that are different from reactant compounds
bonds or new chemical bonds
In this type of nuclear reaction, mass number decreases and atomic number decreases
alpha
the strongest kind of chemical bond within a pure substance, arising because of the attraction of each atom in the substance to many other atoms in the substance
ionic
JJ Thomson's conclusion that cathode ray particles possess a constant charge to mass ratio, as well as Millican's experiments measuring the charge of electrons and calculation of the mass of electrons, as well as Rutherford's gold foil experiment led to what model of the atom?
plum pudding
The only element in the periodic table that is left of the metalloids and that is a nonmetal.
H or Hydrogen
Three types of bonds that hold the atoms of substances together to form compounds
ionic, covalent, and metallic
The alpha emitter used by Rutherford in his gold foil experiment to bombard gold foil and by Millican in his oil drop experiment to ionize air through which oil drops fell
Polonium
what atomic property determines the chemical reactivity of an element?
valence