EARTH SCIENCE
EARTHQUAKES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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both selections give examples of animal behavior in ancient Greece
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both selections describe the damage caused by earthquakes
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both selections take place in the present time
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both selections are told by first person narrators.
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Detailed explanation-1: -Elements present in the same group have the same number of valence electrons. Therefore, elements present in the same group have similar physical and chemical properties.
Detailed explanation-2: -For example, magnesium (Mg) and calcium (Mg) are found in column two and share certain similarities while potassium (K) and calcium (Ca) from row four share different characteristics. Magnesium and sodium (Na) also share qualities because the are in the same period (similar electron configurations).
Detailed explanation-3: -Two different elements are likely to have similar chemical properties when they have the same number of valence electrons. Elements with the same number of valence electrons are found in the same column of the Periodic Table. Elements with the same valence shell are found in the same row on the Periodic Table.
Detailed explanation-4: -Elements in the same group have the same number of valence electrons. Meanwhile, elements in the same period have the same number of occupied electron shells.