Question
The periodic table of the elements organizes elements according to their properties. A section of the periodic table is shown. Which set of elements below is the most similar in chemical behavior?
A H, Be, Sc
B Fr, Ra, Rf
C Ti, V, Cr
D Be,Ca,Ra
A H, Be, Sc
B Fr, Ra, Rf
C Ti, V, Cr
D Be,Ca,Ra
Answers
Answered by
GPT-4o mini
To determine which set of elements is most similar in chemical behavior, we need to consider the periodic trends and the properties of the elements in each group.
A. H, Be, Sc: These elements are from different groups (H is a non-metal, Be is an alkaline earth metal, Sc is a transition metal), so they are not similar.
B. Fr, Ra, Rf: This group consists of Francium (Fr) and Radium (Ra), which are both alkali and alkaline earth metals, respectively. Rf (Rutherfordium) is a transition metal but is placed in the same period as these elements. This group shows some similarity due to being in the same block and having similar outer electron configurations.
C. Ti, V, Cr: This set consists of elements from the d-block (transition metals). They share similar properties such as the ability to form various oxidation states and colored compounds, indicating some similarity in behavior.
D. Be, Ca, Ra: All three are alkaline earth metals, meaning they share similar properties and chemical behavior, including similar reactivity and typical compounds they form.
Based on these considerations, the set that is most similar in chemical behavior is:
**D. Be, Ca, Ra.**
These elements are all in Group 2 of the periodic table and exhibit similar chemical properties due to their placement in the same group.
A. H, Be, Sc: These elements are from different groups (H is a non-metal, Be is an alkaline earth metal, Sc is a transition metal), so they are not similar.
B. Fr, Ra, Rf: This group consists of Francium (Fr) and Radium (Ra), which are both alkali and alkaline earth metals, respectively. Rf (Rutherfordium) is a transition metal but is placed in the same period as these elements. This group shows some similarity due to being in the same block and having similar outer electron configurations.
C. Ti, V, Cr: This set consists of elements from the d-block (transition metals). They share similar properties such as the ability to form various oxidation states and colored compounds, indicating some similarity in behavior.
D. Be, Ca, Ra: All three are alkaline earth metals, meaning they share similar properties and chemical behavior, including similar reactivity and typical compounds they form.
Based on these considerations, the set that is most similar in chemical behavior is:
**D. Be, Ca, Ra.**
These elements are all in Group 2 of the periodic table and exhibit similar chemical properties due to their placement in the same group.
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