<span>C. A concave lens can only form a virtual image, because they are thinner in the middle and thicker around the edges.</span>
Answer:
1. Hydrogen
Atomic # = 1
Atomic Mass = 1.00794 ( If you round it it's 1.008 )
# of protons = 1
# of neutrons = none
# of electrons = 1
Answer:
<h2>36 km</h2>
Explanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = velocity × time
From the question we have
distance = 18 × 2
We have the final answer as
<h3>36 km</h3>
Hope this helps you
THe loss of 2 protons and 2 neutrons (also called a helium nucleus) is defined as alpha decay.
Directly proportional to the product of the two charges and inversely proportional to the square of the distance between them
