Chapter 5 test Flashcards
Who arranged the elements on the periodic table according to increasing atomic number?
Moseley
Who proposed the law of octaves?
Newlands
Who arranged the elements on the 1st periodic table according to increasing atomic mass?
Mendeleev
Who created the electronegativity scale?
pauling
What law states, elements are listed on periodic table based on increasing atomic number?
The periodic law
Why do atoms gain or lose electrons?
to achieve the octet rule
Energy required to remove an electron from an atom or ion
Ionization energy
Measure of the ability of an atom in a chemical compound to attract electrons
Electronegativity
Energy change that occurs when a neutral atom gains an electron
Electron Affinity
Size of atom and measure bond radius (length that is half the distance between the nuclei of two bonded atoms)
Atomic Radius
The size of the ion whether it is a cation or anion
Ionic Size
Positive charge on the nucleus form the protons (Number of protons inside a nucleus)
Nuclear Charge
The inner electrons shield the outermost electron from the full attractive force of the nucleus
Electron shielding
A mixture of metals
alloys
What element is always present in organic compounds
Carbon
