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