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