The reactivity of metals shows a noticeable trend as you move across a period in the periodic table. Metals on the left tend to be more reactive, while those on the right are generally less reactive. This trend is explained by the changes in atomic structure as the atomic number increases. Complete the sentences below to explain this trend: 1. As you move across a period, the number of square in the nucleus increases. 2. This increase results in a stronger square ,which pulls the electrons closer to the nucleus. 3. As a result the atoms become square reactive because it is harder to lose electrons

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The reactivity of metals shows a noticeable trend as you move across a period in the periodic table. Metals on the left tend to be more reactive, while those on the right are generally less reactive. This trend is explained by the changes in atomic structure as the atomic number increases. Complete the sentences below to explain this trend: 1. As you move across a period, the number of square in the nucleus increases. 2. This increase results in a stronger square ,which pulls the electrons closer to the nucleus. 3. As a result the atoms become square reactive because it is harder to lose electrons

Answer 1

1. As you move across a period, the number of **protons** in the nucleus increases.<br /><br />2. This increase results in a stronger **nuclear charge**, which pulls the electrons closer to the nucleus.<br /><br />3. As a result, the atoms become **less** reactive because it is harder to lose electrons.

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