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