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