A) 60 B) 23 C) 51 D) 50
A) 3 B) 1 C) 17 D) 7
A) 9 B) 103 C) 45 D) 5
A) 4 B) 3 C) 33 D) 15
A) Alkali Metals B) Noble Gases C) Alkaline Earth Metals D) Halogens E) Transition Metals
A) 2 B) 14 C) 14.007 D) 7
A) 137 B) 6 C) 2 D) 56
A) 1 B) 2 C) 7 D) 6
A) Chlorine is a liquid non-metal. B) Mercury is a solid metal. C) Phosphorus is a non-metal gas. D) Tellurium is a solid metalloid.
A) 96 B) 42 C) 6 D) 5
A) 3 B) 7 C) 2 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) protons and electrons B) neutrons and electrons C) protons and neutrons D) protons and orbits
A) Phosphorus and Silicon B) Mercury and Thallium C) Argon and Krypton D) Carbon and Boron
A) the atom is a positively charged sphere with electrons embedded in it B) atoms are tiny solid spheres C) the atom is mostly empty space D) electrons orbit totally randomly around the nucleus
A) nucleus B) period C) region D) group
A) Chlorine B) Magnesium C) Beryllium D) Lithium
A) period number B) number of protons C) group number D) number of neutrons
A) the same as the number of electrons B) the same as the number of energy levels C) greater than the mass number D) the mass number minus the atomic number
A) Number of Neutrons B) State of Matter C) Period Number D) Group Number
A) Francium B) Nitrogen C) Manganese D) Carbon
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 protons B) by adding electrons C) By adding or losing electrons D) by losing protons
A) by losing protons B) by adding electrons C) by adding protons D) by losing electrons
A) by losing protons B) by adding electrons C) by losing electrons D) by adding protons
A) by adding neutrons B) by adding or losing neutrons C) by adding protons D) by adding electrons
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 difference between the mass and atomic number B) the same as the number of neutrons C) the same as the atomic number D) the same as the mass number
A) Na and Li B) B and O C) Hg and C D) Mg and F
A) F and At B) Ba and Ra C) Mg and Cl D) Li and Po
A) The noble gases B) The alkali metals C) The alkali earth metals D) The transition metals E) The halogens
A) The noble gases B) The transition metals C) The halogens D) The alkali metals
A) 1 B) 17 C) 8 D) 18 E) 4
A) how many electrons there are B) how many electron levels there are C) how many protons there are D) how reactive they are
A) how many electrons the atom has B) how many valence electrons the atom has C) the number of protons D) the number of neutrons
A) Sodium B) Iron C) Silver D) Fluorine E) Mercury
A) F B) Li C) Al D) H E) Au
A) Mg B) I C) Li D) Cs E) Al
A) the number of neutrons B) the number of protons C) the number of electrons
A) Mendeleev B) Dalton C) Lewis D) Bohr E) Newton |