To determine which statements about Atom A and Atom B are correct, we need to analyze the given information about the number of electrons in each atom and understand the general concepts of electron configuration and chemical reactivity.
1. Electrons in Atom A (10 electrons):
- An atom with 10 electrons matches the electron configuration of Neon (Ne), which is a noble gas.
- Noble gases have a complete valence shell, making them stable and chemically unreactive.
- Therefore, Atom A will not give up electrons and is not likely to form bonds since it is already stable.
2. Electrons in Atom B (12 electrons):
- An atom with 12 electrons matches the electron configuration of Magnesium (Mg), which has the electron configuration [Ne]3s².
- Magnesium tends to lose 2 electrons to achieve the stable electron configuration of Neon (Ne) with 10 electrons.
- Therefore, Atom B will give up 2 electrons to become stable.
3. Chemical Reactivity:
- Both A and B will be chemically unreactive:
- This statement is incorrect since only Atom A (with Neon configuration) is unreactive.
- Atom B will react by giving up electrons to achieve stability.
4. Gaining Electrons:
- Both A and B will gain electrons to become stable:
- This statement is incorrect since Atom A does not need to gain any electrons (it is already stable).
- Atom B will lose, not gain, electrons to become stable.
Based on the analysis, here are the evaluations:
- "A will give up two electrons to form bonds" is incorrect.
- "B will give up two electrons to form bonds" is correct.
- "Both A and B will be chemically unreactive" is incorrect.
- "Both A and B will gain electrons to become stable" is incorrect.
Hence, the correct statement is:
B will give up two electrons to form bonds.
