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