Abeta (β) particle is described by which of the following?
select the correct answer below:
a β particle is the antimatter equivalent of a proton.
a β particle is the antiparticle to the electron.
a β particle is another term for an electron orbiting a stable nucleus.
a β particle is a high-energy electron.

A particle is a high energy electron

Explanation:

particle :

The energy and speed of the   particle is very high.

Beta particles are emitted by the radioactive decay of the atomic nucleolus.

When an electron is emitted then it is denoted by and when a positron is emitted then it is denoted by  

The energy of the  particles is very high

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.