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