Answer:
the answer is A
Explanation:
I dont really have an explanation but hope it helps
Answer:
Total number of heat absorbed is 4.08kJ
Explanation:
Explanation is contained in the picture attached
Answer:
A
Explanation:
Germanium and Carbon are in the same 14th group.
Answer:
C. Fluorine because the model has 9 protons which is represented by the atomic number
Explanation:
We usually identify an element by the number of protons in them. The number of protons is the atomic number of an atom.
- Every atom has a specific number of protons in them.
- This number of protons is the atomic number.
- According to the periodic law, atoms are arranged on the periodic table based on their atomic number.
- The given fluorine atom has 9 protons which represents the atomic number of the atom.
- This way, the given number clearly shows the right model for identifying the chemical specie.
