Answer:
The answer to your question is: 20
Explanation:
Atomic number is the number of proton and atom has. Each element has a specific number of protons, if the number of protons change, then this is a new element.
Mass number is the number of protons and neutrons and atom has.
Mass number = protons + neutrons
Data
Number of protons = ?
Atomic number = 20
Then,
atomic number = number of protons = 20
Answer:
<u>A:cool fluid sinks</u>
<u>B:warm fluid rises</u>
<u>C:convection current</u>
Explanation:
Just took the assessment!!
Wavelength = (speed) / (frequency)
Speed of radio = speed of light.
When the truck accelerates forward the ball will shift to the back of the bed of the truck because of inertia
D.) Nearly all light that strikes an "Opaque" <span>object will be absorbed by the object.
Hope this helps!</span>
