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