Question

In the ground state, this neutral atom has two valence

electrons. The element has a lower electronegativity than
magnesium. Where is this element located on the periodic
table?
A
B
C
Group 2, Period 2
Group 1, Period 4
Group 4, Period 2
D Group 2, Period 4

Answer 1

Based on the information provided, the element with two valence electrons in the ground state and a lower electronegativity than magnesium is located in Group 2, Period 2 on the periodic table.

Explanation: The periodic table is organized into groups and periods. Groups are the vertical columns, while periods are the horizontal rows. The number of valence electrons an element has is determined by its position in the periodic table. For example, elements in Group 2 have two valence electrons.

Magnesium is located in Group 2, Period 3. Since the element in question has a lower electronegativity than magnesium, it must be in the same group but in an earlier period. Therefore, the element is located in Group 2, Period 2.

In summary, the element with two valence electrons and a lower electronegativity than magnesium is located in Group 2, Period 2 on the periodic table.