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