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