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