Use the chart to determine which is an example of a highly polar covalent bond. ca – cl fe – o h – s f – f done elements electronegativity aluminum (al) 1.61 calcium (ca) 1 carbon (c) 2.55 chlorine (cl) 3.16 fluorine (f) 4 hydrogen (h) 2.2 iron (fe) 1.83 nitrogen (n) 3.04 oxygen (o) 3.44 phosphorus (p) 2.19 potassium (k) 0.82 silicon (si) 1.9 sulfur (s) 2.58

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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i just learnt this recently but i need to look through my notes again