What are the three types of nuclear particles emitted when a radioactive atom decay?

Chemistry

2 answers:

NISA [10]3 years ago

7 0

Answer:

Alpha particles, Beta particles and Gamma rays

Explanation:

The emission of particles when a radioactive atom decays is called radioactivity.

An atom is radioactive as a result of unstable nucleus. This unstable nucleus of the atom disinintegrates and leads to emission of Alpha particles, Beta particles and gamma rays.

Alpha particles contain 2 protons and 2 neutrons. They are positively charged

Beta particles are negatively charged

Gamma rays are electromagnetic waves with short wavelength

Alenkasestr [34]3 years ago

4 0

Alpha, Beta, and Gamma Decay

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Which atom or ion is the largest? A. K B. K+ C. Ca D. Ca2+ E. Li

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Step-by-step explanation:

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The burning of magnesium is a highly exothermic reaction. How many kilojoules of heat are released when 0. 75 mol of Mg burn in

alexandr402 [8]

Taking into account the definition of enthalpy of a chemical reaction, the quantity of heat released when 0.75 moles of Mg are burned is 451.5 kJ.

<h3>Enthalpy of a chemical reaction</h3>

The enthalpy of a chemical reaction is known as the heat absorbed or released in a chemical reaction when it occurs at constant pressure. That is, the heat of reaction is the energy that is released or absorbed when chemicals are transformed into a chemical reaction.

The enthalpy is an extensive property, that is, it depends on the amount of matter present.

<h3>Heat released in this case</h3>

In this case, the balanced reaction is:

2 Mg(s) + O₂ (g) → 2 MgO(s) + 1204 kJ

This equation indicates that when 2 moles of Mg reacts with 1 mole of O₂, 1204 kJ of heat is released.

When 0.75 moles of Mg are burned, then you can apply the following rule of three: if 2 moles of Mg releases 1204 kJ of heat, 0.75 moles of Mg releases how much heat?

$heat=\frac{0.75 moles of Mgx1204 kJ}{2 moles of Mg}$