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