CHEMISTRY PRACTICE EXAM WITH CORRECT ANSWERS

photons - Answer-quanta of energy that behave like tiny particles when an electron absorbs energy the atom changes from its _____ state to its ____ state - Answer-ground, excited bohr labeled each _________ in his atomic model by a quantum number. - Answer-energy level that atomic number is equal to what? - Answer-the protons uv waves have (larger or smaller) waves than radio waves - Answer-smaller as wavelenth increases, frequency - Answer-decreases the region around the nucleus where an electron can probably be found is called the... - Answer-electron cloud the maximum number of electrons allowed in any f sublevel is - Answer-14 a electron in a 2s sublevel has more or less energy than an electron in the 4s sublevel - Answer-less a chemical bond between atoms results from the attraction between the valence electrons and the----- of different atoms - Answer-nuclei if two covalently bonded atoms are identical, the bond is identified as nonpolar covalent or polar covalent? - Answer-nonpolar covalent a covalent bond in which there is an unequal attraction for the shared electrons is classified as - Answer-polar atoms with a strong attraction for electrons they share with another atom exhibit - Answer-high electronegativity the greater the electronegativity difference between two atoms bonded together, the greater the bond's percentage of - Answer-ionic character in a crystal of an ionic compound, each cation is surrouned by a number of what? - Answer-negative ions