Answer: 
is the correct equation for beta decay.
Explanation:
When a beta particle, that is, 
is emitted in a radioactive decay then it is known as beta decay.
Therefore, beta decay of Polonium-218 is as follows.
Therefore, we can conclude that is the correct equation for the given beta decay.
The object with dimensions 
and with mass 250.6 g will have a density equal to 
.
<h3>
<u>Explanation:</u></h3>
<u>Given:</u>
Dimensions of the object =
length = l = 5.54 cm
width = w = 10.6 cm
height = h = 199 cm
Mass of the object = m = 250.6 g
<u>Formula:</u>
The relation between density, mass and volume of any object is given by:
Since volume of an object with length (l), width (w) and height (h) [assuming a rectangular object] can be defined as,
Density of the object is 
Answer:
True
Explanation:
The core of the earth is very dense so that leads me to beleive that the answer is true.
Answer:
anion has a negative charge
An anion has more electrons than protons, consequently giving it a net negative charge
The presence of an atmosphere, temperature, and distance from the Sun do not affect a planet's gravity. Are the objects in the solar system still or are they in motion? The Sun's gravity pulls the planets in orbit around it, and some planets pull moons in orbit around them.
