Question

Question.3. Atoms of eight elements A, B, C, D, E, F, G and H have the
same number of electronic shells but different number of electrons in their
outermost shells. It was found that elements A and G combine to form an
ionic compound which can also be extracted from sea water. Oxides of the
elements A and B are basic in nature while those of E and Fare acidic. The
oxide of element D is almost neutral. Answer the following questions based
on the information given herein:
1. To which group or period of the periodic table do the listed elements
belong?
2. Which one of the eight elements is likely to be a noble gas?
3. Which one of the eight elements would
have the largest atomic
radius?
4. Which two elements amongst these are likely to be non-metals?
5. Which one of these eight elements is likely to be a semi-metal or
metalloid?​

Answer 1

Answer:

Atoms of eight elements A, B, C, D, E, F, G and H have the same number of electronic shells but different number of electrons in their outermost shell. It was found that elements A and G combine to form an ionic compound which can also be extracted from sea water. This compound is added in a small amount to almost all vegetable dishes during cooking. Oxides of elements A and B are basic in nature while those of E and F are acidic. The oxide of D is almost neutral. Based on the above information,

Explanation:

please like and brilliant