:25:11
Jia-Chien, get up!
:25:14
How many times have I told you
not to fall asleep at your desk?
:25:18
It's bad for your posture.
:25:22
And didn't the doctor tell you that
jogging was bad for your back?
:25:54
-Shan-Shan!
-Good morning, Grandpa Chu.
:25:57
Morning! Off to school?
Why are you eating your breakfast here?
:26:00
I don't have time for breakfast.
:26:03
Look! Your dumplings from yesterday.
:26:05
But Mom squeezed the juice out,
so I wouldn't get my hands all greasy.
:26:11
Come to my house at noon,
and I'll make lunch for you.
:26:14
-I have school all day.
-All day?
:26:16
Then where's your lunch box?
:26:18
Here.
:26:19
The bus is here!
:26:37
The valence electron of a typical element...
:26:42
...is equal to its groups.
:26:46
And its valence electron in turn
is equal to its groups. Understood?
:26:50
Okay, let's look at the periodic table
of the elements again.
:26:53
The Group A elements:
:26:56
1A...
:26:57
...2A...
:26:59
...3A....