Ions Video Lessons

Concept:

Problem: Identify the ion with the given number of protons and electronsMg2+      V3+      Mn2+      Ar        S2-      Ba2+Fe3+      Cs+      Fe2+       Fe2+      Co2+     K+a. 19 protons and 18 electronsb. 16 protons and 18 electronsc. 25 protons and 23 electronsd. 26 protons and 24 electronse. 55 protons and 54 electronsf. 26 protons and 23 electrons

FREE Expert Solution

We're being asked to identify the ion with the given number of protons and electrons.

You can determine the identity of the element using its atomic number:

Atomic number (Z):

represents the identity of the element
reveals the number of protons
in a neutral element:

# of protons = # of electrons

a. 19 protons and 18 electron

# of protons = 19
# of electrons = 18

The # of protons is the same as the atomic number of the element:

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Problem Details

Identify the ion with the given number of protons and electrons

Mg2+      V3+      Mn2+      Ar        S2-      Ba2+

Fe3+      Cs+      Fe2+       Fe2+      Co2+     K+

a. 19 protons and 18 electrons

b. 16 protons and 18 electrons

c. 25 protons and 23 electrons

d. 26 protons and 24 electrons

e. 55 protons and 54 electrons

f. 26 protons and 23 electrons