Answer:
shielding of electrons
Explanation:
The addition of electrons shells results in the shielding of electrons away from the nucleus, most importantly the nuclear pull resulting from the charge.
- The nucleus pulls electrons to itself due to the net positive charge on it.
- As more electronic shell is added, the effect of the pull weakens outward.
- The inner shell experiences the nuclear pull more than the outer shell electrons.
The effect is responsible for a wide range of properties of elements.
constant = 2 and 4
variable = y
Explanation:
A constant is usually a symbol with a known value. In the expression, the constants are 2 and 4.
Their values are accurately known.
A variable is place holder and the value is not known. Variables are not static. They can take different numerical values as defined by an equation:
2cm +4y
the cm is the a unit
2 and 4 are constants
y is a variable that can assume any value
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<span>Self-dispatch to another incident</span>
Amber is the answer to this question
<h2>
Answer: 1 to 12.
</h2>
<u>The Mercalli seismological scale is a scale of 12 degrees</u>, where 1 is very weak and 12 catastrophic.
This scale owes its name to the Italian physicist Giuseppe Mercalli and was developed to assess the intensity of earthquakes through the effects and damages caused to different structures.
This means the <u>Mercalli scale measures how strong a earthquake has been by </u><u>its consequences and not by its magnitude</u><u>, therefore it is based on </u><u>empirical observations.</u>
