Answer:
Chlorine
Explanation:
chlorine is the element that shows similar chemical properties as bromine because this element is in the same group in the periodic table show similar properties they belong to 17th group.
Answer:
If you ever wonder why nails rust, it's because rusting happens when a metal is exposed to oxygen. The molecules of iron on the surface of the nail exchange atoms with the oxygen in the air and produce a new substance, the reddish-brown ferrous oxide, a.k.a. rust.
Explanation:
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Time taken for star to reach Earth = 7.5 years
<h3>Further explanation</h3>
Given
7.5 light years(distance Earth-star)
Required
Time taken
Solution
Speed of light=v = 3 x 10⁸ m/s
1 light years = 9.461 × 10¹⁵ m= distance(d)
So time taken for 1 light years :
time(t) = distance(d) : speed(v)
t = 9.461 × 10¹⁵ m : 3 x 10⁸ m/s
t = 3.154 x 10⁷ s = 1 years
So for 7.5 light years, time taken = 7.5 years
Answer:
the precise location of electrons at a specific time is unknown
Explanation:
The electron cloud model states that an electron’s position is uncertain, and does not revolve around the nucleus along a set course, as proposed by Bohr.