building chords

Junas, Welcome. The terms you used - whole, whole, half, whole....... - mean the same as the terms used by Roger - tone, tone, semitone, tone...... - and if you follow Roger' advice you won't go wrong. Now to add just a little more;

The steps of;

tone.....tone.....semitone.....tone.....tone.....tone.....semitone.....tone are, again, the same as
  1          2             3             4         5          6             7             1 (repeat) are used in chord progressions. With,
1 = major chord
2 = minor chord
3 = minor chord
4 = major chord
5 = major chord
6 = minor chord
7 = diminished chord.

Now most songs use a chord progression of 1, 4 & 5. So if you follow "C" (no sharps or flats) you have:

C....C#/Db....D....D#/Eb....E....F....F#/Gb....G....G#/Ab....A....A#/Bb....B....C and in the key of C your chords are.
1                 2                  3    4                 5                  6                 7     1 so you can see the chord progression is

1 = C
4 = F
5 = G for a basic 3 chord progression.

This will work for all notes - all you have to do is learn how to step them down. Also, this is great to know when you begin to transform songs into different keys. Hope I haven't confused the issue. For the time being just continue to practice, check out all the information available to you here on Chordie and never feel shy about asking for help or advice.

Nela