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