Seven attributes instead of ten attributes?

I do not practice Kabbalah, but I found this for you:

According to kabbalah (Jewish mysticism), G-d created the world with seven divine attributes. They are: Kindness, Severity, Harmony, Perseverance, Splendor, Attachment and Royalty. Accordingly, the entire creation is a reflection of these seven attributes.

The seven attributes (Midot) are:

Chesed (Kindness) is the quality which causes one to give to those who are undeserving. We all are beneficiaries of G-d's Chesed every day.

Gevurah (Severity). G-d's attribute of discipline and justice.

Tiferet (Harmony) is the ability to synthesize differing, and often opposing, ideas and emotions.

Netzach (Perseverance) is a person's drive to succeed. The power that motivates a person to complete a project which he/she has begun despite opposition from within and/or others.

Hod (Humility) -- the name speaks for itself.

Yesod (Foundation) is the attribute which allows you to establish a relationship with one who is lower than yourself (intellectually or otherwise) and give of yourself to that person.

Malchut (Royalty) is the exact opposite; it is the attribute which allows you to establish a relationship with one who is greater than yourself (intellectually or otherwise) and receive from that person.