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