Answer:
I,Br,Cl,F
Explanation:
ionization energy decreases the farther down an element is
The color changes to a blue green color because of the acidity/pH in water. Example is the statue of liberty
Magnesium combined with sulfuric acid produces magnesium sulfate and hydrogen gas.
The electron domain geometry of all of the above except XeF4 (answer E) is a tetrahedral.
Explanation
Tetrahedral is a molecular shape that result when they are four bonds and no lone pair around the central atom in the molecule.
The bond bonded to the central atom lie at the corner of tetrahedron with 109.5 degrees between them.
CBr4,PH3 , CCl2Br2 has a tetrahedral geometry while XeF4 has a square planar.
Answer:
ionic
Explanation:
Ionic bonds exist between Ca and F ions in CaF₂. Ionic bonds are interatomic bonds formed by the transfer of electrons from one atom to the other.
The donor atom here is Ca and it has two valence electrons. Fluorine is the receiving atom with 7 electrons in its outermost shell.
Ca would give one each of its two outermost electrons to the fluorine atoms to complete their octet. Ca ion would now resemble Argon and the flourine atoms would look more like Neon atoms.
This is an ionic bond