How is the periodic table arranged?, By increasing atomic number, By the decrease of mass number , Alphabetical order of the elements, In a random order, What is the atomic number of an element , The total number of electrons , The number of neutrons , The total number of protons and neutrons , The number of protons, In the periodic table groups are arranged...., Vertically , Horizontally , Which subatomic particles are found in the nucleus?, Protons and electrons , Neutrons , Protons and neutrons , Electrons and neutrons, Where are electrons found?, On the shells, In the nucleus, What does the group number of an element represent?, The number of electron shells, The number of neutrons, The total number of electrons, The number of electrons in its outer shell, What does the period number of an element represent?, The number of electron shells, The number of neutrons, The total number of electrons, The number of electrons in its outer shell, The group 1 elements are called the:, Noble gases, Halogens, Alkali metals, Transition metals, The reactivity of the alkali metals ____________________________ as you go down the group, Increases, Decreases, Stays the same, Goes up and down, Elements in group 7 are :, metals, non-metals, The reactivity of the halogens ____________________________ as you go up the group, Increases, Decreases, Stays the same, Goes up and down, All the halogens are toxic in their elemental form, True, False, A more reactive halogen can displace a less reactive halogen from its salt, True, False, What is a precipitate?, A liquid, An insoluble solid formed in a liquid.

Periodic Table and elements

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