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