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