Atomic Mass = 140.1 amu
Element= Ce (Cerium)
Answer:
AlF3
Explanation:
Aluminum fluoride (AlF3) is an inorganic compound in which aluminum and fluoride has ionic bond between each other.
Aluminum ( atomic number - 13) has 3 valence electrons and can lose 3 electrons to get a stable configuration while fluorine (atomic number - 9) can gain one electron to make a stable configuration. So in order to attain a stable configuration one aluminum (Al) atom form ionic bond with three fluorine atoms and form AlF3.
Hence, the chemical formula between Al and F is AlF3.
Answer:
The <u>detection</u> of iron in a mixture of metals for example , or in a compound such as magnetite, is a branch of analytical chemistry called qualitative analysis. <u>Measurement</u> of the actual amount of a certain substance in a compound or mixture is termed quantitative analysis.
Answer:precisely 1/12 the mass of an atom of carbon-12.
Explanation:The carbon-12 (C-12) atom has six protons and six neutrons in its nucleus. In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass.
Sorry it’s messy, hope this helps :]
