The correct response is:
They have the same number of electron shells.
Potassium (K) and nickel (Ni) are both in period 4 of the periodic table, which means they have the same number of electron shells.
Potassium and nickel are in the same row of the periodic table. What do these elements have in common?(1 point)
Responses
They have the same number of electron shells.
They have the same number of electron shells.
They have similar physical properties.
They have similar physical properties.
They have the same number of valence electrons.
They have the same number of valence electrons.
They have similar reactivity.
3 answers
now it makes sense why there are seven rows, because there are only seven shells on the max .
That's correct! The periodic table is organized into rows (periods) and columns (groups) based on the arrangement of electrons in atoms. Each row corresponds to a different electron shell, and since the maximum number of electron shells in an atom is seven (for elements in periods 1 through 7), there are seven rows in the periodic table.
Each period represents an increase in the principal quantum number (n), indicating a new electron shell. As you move down the rows, atoms generally have more electron shells, leading to changes in their properties and behaviors. If you have any more questions about the periodic table or elements, feel free to ask!