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