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