Chemistry

Chemistry, 23.07.2019 06:50, izzysmith6836

According to the periodic table, how many electrons does gallium (#31) have in its valence level?

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Physics, 23.06.2019 10:30, Chapo3760

Up of elements with the same number of valence electrons. vertical column in the periodic table of elements such as alkali metals or halogens. a horizontal row of elements in the periodic table. this is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table. periodic trend these are the highly reactive elements located in group 1 of the periodic table. these elements have one electron in their outer energy level which makes them highly reactive with water and halogens. these are the reactive elements located in group 2 of the periodic table. these elements have two electrons in their outer energy level which makes them reactive with water and halogens. alkaline earth metals these are the group 3 or d-block elements. these dense metals with high boiling points can have different oxidation states and all are solid at room temperature with the exception of mercury. transition metals this is the highly reactive family of elements with 7 valence electrons. this is an element with full valence shell, very unreactive. this is a group of elements with few valence electrons that conducts heat and electricity. one of a class of elements having properties intermediate to metals and nonmetals. this is a type of element that has many valence electrons, not a conductor.

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Chemistry, 24.06.2019 04:00, SKSKSKSKGKUFHjk

When studying the halogens (group 17) on the periodic table, how does the number of the valence electrons change as the energy level is increased? a) the total number of valence electrons does not change, it remains 7. b) the total number of valence electrons does not change, it remains 1. c) the total number of valence electrons increases by 1 with each energy level. d) the total number of valence electrons decreases by 1 with each energy level.

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Chemistry, 04.08.2019 04:30, santos36755

According to the periodic table, how many electrons does gallium (#31) have in its valence level? 3 13 31 2

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Biology, 25.09.2019 12:50, esmeralda1209

Which of the following is true for valence electrons? a) valence electrons are always located in the innermost energy level b) each element in the periodic table has a different number of valence electrons. c) valence electrons may be lost or gained by an atom when bonding occurs with another atom d) when atoms collide with other atoms, they bond automatically

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