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