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