To address the information presented, let's break down the specifics given by the two statements:
1. A metalloid in Group 8A:
- We need to identify if there are any metalloids belonging to Group 8A of the periodic table.
- From the periodic table, Group 8A contains the noble gases: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
- None of these elements are metalloids. Therefore, there is no metalloid in Group 8A.
2. An alkaline earth metal with a lower atomic number than boron:
- Boron has an atomic number of 5.
- Alkaline earth metals include: Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).
- Among these, we need to find an alkaline earth metal that has an atomic number less than 5.
- Beryllium (Be) has an atomic number of 4, which is indeed less than 5.
So, putting this information into our table, it would look as follows:
| A metalloid in Group 8A. | Yes | No | Be |
|-----------------|------|-----|------|
| An alkaline earth metal with a lower atomic number than boron. | Yes | No | Be |
Given these considerations, the detailed responses should be as follows:
- There is no metalloid in Group 8A.
- The alkaline earth metal with a lower atomic number than boron is Beryllium (Be).
Therefore, the results are:
| A metalloid in Group 8A. | Yes | No | Be |
|-----------------|------|-----|------|
| An alkaline earth metal with a lower atomic number than boron. | Yes | No | Be |
Thus, the appropriate answers are:
- For a metalloid in Group 8A: No.
- For an alkaline earth metal with a lower atomic number than boron: Be.
