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