Al 1s²2s²2p⁶3s²3p¹ - 3e⁻ → Al³⁺ 1s²2s²2p⁶
_________
Answer: Science and Mathematics- Anthropologist, Meteorologist
Engineering and technology- Fuel Cell Technician, Computer programmer, electrical Drafter, Civil Drafter
Neutrons = 118
<h3>Further explanation </h3>
The elements in nature have several types of isotopes
Isotopes are elements that have the same Atomic Number (Proton)
Atomic mass is <em>the average atomic mass of all its isotopes </em>
The most abundant isotope of gold (Au) is isotope Au-197
So the atomic mass of Au = 197
and the atomic number of Au = 79
Atomic mass is the sum of protons and neutrons
Atomic Number (Z) = Atomic mass (A) - Neutrons
Neutrons = A - Z
So neutrons for Au-197 :
Answer:
<h3>The answer is 12 km</h3>
Explanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
<h3>distance = velocity × time</h3>
From the question
velocity = 12 km/h
time = 1 hour
So we have
distance = 12 × 1
We have the final answer as
<h3>12 km</h3>
Hope this helps you
The first example of diffusion is smoking a cigarette when u light it it spreads through the air.
The second example is lighting a candle in a room it the smoke spreads through the air.
Smoke can be very bad for the air and the people around because it can cause many problems with your breathing.