Sodium (Na) is very reactive because it does not have a full valence shell.
Answer:
small car since they weigh less than a bus
Explanation:
Answer:
63.57 kg
Explanation:
weight = 140 lbs
Let the mass is m.
1 lbs = 4.45 N
The weight of an object is defined as the force with which our earth attracts the body towards its centre.
Weight is the product of mass of the body and the acceleration due to gravity of that planet.
W = m x g
On earth surface g = 9.8 m/s^2
Now convert lbs in newton
So, 140 lbs = 140 x 4.45 = 623 N
So, m x 9.8 = 623
m = 63.57 kg
Thus, the mass is 63.57 kg.
Average velocity = (800+1600)/(4+10)
= 171.42m/s
False. What actually determines the properties of elements are the electrons, or aka valence electrons. They are used to bond, which determines its properties.
