Agouy balance is used to determine the magnetic susceptibility of a substance. a strong electromagnet is placed next to the sample, which is on a balance. if the sample is paramagnetic, the mass reading of the balance will increase when the field is switched on. based on their electron configurations, predict whether these elements are paramagnetic or diamagnetic.
paramagnetic
he ,mg ,s ,li

Paramagnetic - S , Li

Diamagnetic - He , Mg

Explanation:

Paramagnetic are those which has unpaired electrons and diamagnetic are those in which all electrons are paired.

Given

He, the atomic number - 2

The electronic configuration is -  

The electrons in 1s orbital = 2 (Paired)

Thus, the element is diamagnetic as the electrons are paired.

Mg, the atomic number - 12

The electronic configuration is -  

The electrons in 3s orbital = 2 (Paired)

Thus, the element is diamagnetic as the electrons are paired.

S, the atomic number - 16

The electronic configuration is -  

The electrons in 3p orbital = 4 (Unpaired)

Thus, the element is paramagnetic as the electrons are unpaired.

Li, the atomic number - 3

The electronic configuration is -  

The electrons in 2s orbital = 1 (Unpaired)

Thus, the element is paramagnetic as the electrons are unpaired.

true

explanation:

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.