A) 51 B) 23 C) 50 D) 60
A) 17 B) 7 C) 1 D) 3
A) 45 B) 103 C) 5 D) 9
A) 33 B) 4 C) 15 D) 3
A) Noble Gases B) Transition Metals C) Alkali Metals D) Halogens E) Alkaline Earth Metals
A) 14.007 B) 14 C) 7 D) 2
A) 56 B) 6 C) 137 D) 2
A) 1 B) 2 C) 7 D) 6
A) Mercury is a solid metal. B) Phosphorus is a non-metal gas. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 5 B) 42 C) 96 D) 6
A) 4 B) 7 C) 2 D) 3
A) proton/+, neutron/-, electron/no charge B) proton/-, electron/+, neutron/no charge C) proton/+, electron/neutral, neutron/- D) proton/+, electron/-, neutron/uncharged
A) protons and orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Phosphorus and Silicon B) Carbon and Boron C) Argon and Krypton D) Mercury and Thallium
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) period B) region C) group D) nucleus
A) Beryllium B) Lithium C) Magnesium D) Chlorine
A) group number B) number of neutrons C) period number D) number of protons
A) greater than the mass number B) the mass number minus the atomic number C) the same as the number of electrons D) the same as the number of energy levels
A) Group Number B) Number of Neutrons C) State of Matter D) Period Number
A) Nitrogen B) Francium C) Carbon D) Manganese
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by adding electrons B) By adding or losing electrons C) by adding protons D) by losing protons
A) by losing electrons B) by losing protons C) by adding protons D) by adding electrons
A) by adding protons B) by losing protons C) by adding electrons D) by losing electrons
A) by adding protons B) by adding or losing neutrons C) by adding electrons D) by adding neutrons
A) difference between the atomic and mass number B) same as the mass number C) same as the atomic number D) mass number divided by 2
A) the difference between the mass and atomic number B) the same as the number of neutrons C) the same as the atomic number D) the same as the mass number
A) Hg and C B) Na and Li C) B and O D) Mg and F
A) Li and Po B) F and At C) Mg and Cl D) Ba and Ra
A) The halogens B) The transition metals C) The noble gases D) The alkali earth metals E) The alkali metals
A) The halogens B) The alkali metals C) The noble gases D) The transition metals
A) 4 B) 17 C) 1 D) 8 E) 18
A) how many electron levels there are B) how many electrons there are C) how many protons there are D) how reactive they are
A) how many electrons the atom has B) the number of neutrons C) the number of protons D) how many valence electrons the atom has
A) Fluorine B) Mercury C) Iron D) Sodium E) Silver
A) Li B) H C) Al D) F E) Au
A) Mg B) I C) Al D) Cs E) Li
A) the number of neutrons B) the number of protons C) the number of electrons
A) Newton B) Mendeleev C) Dalton D) Lewis E) Bohr |