Question

a certain polyatomic ion contains 49 protons and 50 electrons. whats the net charge of this ion?
a) -2
b) +2
c) -1
d) +1
question 19 (5 points)
which transition metals are paramagnetic but can easily form ferromagnetic alloys with other metals?
a) transition metals in groups 8 - 10, periods 4 and 5
b) transition metals in groups 8 - 10, periods 5 and 6
c) transition metals in groups 1 - 5, periods 5 and 6

Explanation:

Step1: Calculate the net charge

The net charge of an ion is calculated by the formula: Net charge = Number of protons - Number of electrons.
Given that the number of protons \(p = 49\) and the number of electrons \(e=50\).
So, Net charge \(=49 - 50\)

Step2: Simplify the expression

\(49-50=-1\)

Answer:

C. -1