greek name for atom

(a)  

democritus idea was not accepted by contemporaries

(a)  

1808, an english scientisit and schoolteacher formulated a precise definition of atom

(a)  

JD 1: (a)   composed of extremely small particles, called atoms

JD 2: all atoms of a given element are ____, having the same __, __, and __ __. The atoms of one element are different from the __ of all other __.

(a)  

JD 3: ____ are composed of atoms of more than one ___. In any of this, ratio of the numbers of atoms of any to of the elements present is either an integer or a simple fraction.

(a)  

JD 4: a ___ ___ involves only the ___, ___, or ___ of atoms; it does not result in their __ or ___.

(a)  

Who formulated law of definite proportions

(a)  

different samples of the same compound always contain its constituent elements in the same proportion by mass.

(a)  

who formulated law of multiple proportions

(a)  

if two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element are in ratios of small whole numbers.

(a)  

who formulated law of conservation of mass

(a)  

number of hypothesis is the law of conservation of mass

(a)  

number of hypothesis is the law of definite proportions

(a)  

number of hypothesis is the law of multiple proportions

(a)  

matter can be neither created nor destroyed

(a)  

basic unit of an element that can enter into chemical combination

(a)  

smaller particles of atoms are called

(a)  

the mission and transmission of energy through space in the form of waves

(a)  

device made of glass tube which most of the air has been evacuated

(a)  

negatively charged plate are called

(a)  

positively charge plate are called

(a)  

mass of electron

(a)  

who measured mass/charge of e-

(a)  

measured mass of e- in 1923

(a)  

who formulated the idea that + charge is concentrated in the nucleus

(a)  

mass of p is

(a)  

who measured neturon

(a)  

mass of neutron is same to?

(a)  

number of protons in nucleus

(a)  

number of protons + number of neutrons

(a)  

atoms of the same element with different numbers of neutrons in their nuclei

(a)  

aggregate of two or more atoms in a definite arrangement held together by chemical forces

(a)  

contains only two atoms

(a)  

contains more than two atoms

(a)  

atom or group of atom that has a net + or - charge

(a)  

ion with + charge

(a)  

ion with - charge

(a)  

only subatomic that can gain or lose

(a)  

contains only one atom

(a)  

more than one atom

(a)  

shows the exact number of atoms of each element in the smalles unit of a substance

(a)  

shows the simples whole-number ratio of the atoms in a substance

(a)  

consists of combinations of cations and anions

(a)  

the sum of the charges of cations and anions is equalts to

(a)  

most reactive metal are at the (a)   side

most reactive nonmetal are at the (a)   side

substance that yields h+ when dissolved in water

(a)  

acid that contains hydrogen, oxygen, and another element

(a)  

anions of oxoacid

(a)  

substance that ields oh- when dissolved in water

(a)  

compounds that have a specific number of water molecules attached to them

(a)  

distance between identical points on successive waves

(a)  

vertical distance from the midline of a wave to the peak or trough

(a)  

number of waves that pass through a particul point in 1 second

(a)  

who proposed that visible light consists of electromagnetic waves

(a)  

is the emission and transmission of energy in the form of electromagnetic waves

(a)  

speed of light

(a)  

when solids are heated, the emid ___ ___ over a wide range of wavelengths

(a)  

myster 2 solved by einstein in 1905 stating that light has both wave and particle natures

(a)  

model stating that e- can only have specific (quantized) energy values

(a)  

who reasons that e- is both particles and wave

(a)  

equation that described both the particle and wave nature of the e-

(a)  

schrodinger equation can only be solved exactly for the (a)   atom

what are the four quantum numbers?

(a)  

how many orbitals

(a)  

what are the orbitals

(a)  

who with name of principle stated that no two electrons in an atom can have the same four quantum numbers

(a)  

electrons with the same value of n

(a)  

electrons with the same values of n and l

(a)  

electrons with the same values of n, l, and ml

(a)  

a rule stating that most stable arrangement of electrons in subshell is the one with the greatest number of parallel spins

(a)  

how the electrons are distributed among the various atomic orbitals in atom

(a)  

name for orbital diagram where there are unpaired e-

(a)  

name for orbital diagram where all the e- are paired

(a)  

having the same number of electrons, and hence the same ground-state electron configuration

(a)  

is the positive charge felt by an e-

(a)  

minimum energy required to remove an electron from a gaseous atom in its ground state

(a)  

how many ionization energies?

(a)  

negative of the energy change that occurs when an e- is accpeted by an atom in the gaseous state to form an anion

(a)  

are the outer shell electrons of an atom

(a)  

are the electrons that participate in chemical bonding

(a)  

electrostatic force that holds ion together in ionic compound

(a)  

is the energy required to completely separate one mole of a solid ionic compound into gaseous ions

(a)  

chemical bond in which two or more electrons are shared by two atoms

(a)  

is a covalent bond with greater electron density around one of the two atoms

(a)  

ability of antom to attract toward itself the electrons in a chmiecal bond

(a)  

is the difference btween the number of valence electrons in an isolated atom and the number of electrons assigned to that atom in a lewis structure

(a)