Question
A group of middle school science students developed a model of part of the Periodic Table to help their classmates learn about atomic structures and patterns within the Periodic Table.
image
Which conclusion did the students want their classmates to make after examining their model?
A.
Atoms in the same period have the same number of valence electrons.
B.
Atoms in the same group contain the same number of valence electrons.
C.
The number of protons in an atom is equal in each group.
D.
The number of protons in an atom is equal to the number of valence electrons.
image
Which conclusion did the students want their classmates to make after examining their model?
A.
Atoms in the same period have the same number of valence electrons.
B.
Atoms in the same group contain the same number of valence electrons.
C.
The number of protons in an atom is equal in each group.
D.
The number of protons in an atom is equal to the number of valence electrons.
Answers
GPT-5 mini
B. Atoms in the same group contain the same number of valence electrons.
Explanation: Elements in a column (group) of the Periodic Table have the same number of valence electrons, which gives them similar chemical properties. Periods (rows) correspond to energy levels, not valence electron counts.
Explanation: Elements in a column (group) of the Periodic Table have the same number of valence electrons, which gives them similar chemical properties. Periods (rows) correspond to energy levels, not valence electron counts.