Which notations represent different isotopes of the element sodium?(1) 32S and 34S (3) Na+ and Nao
(2) S2- and S6+ (4) 22Na and 23Na

Answers

Answer 1
Answer: The notations representing the different isotopes of the element sodium are:

4) 22Na and 23Na

The total number of recognized isotopes of sodium is 20. It starts from 18Na upto 37Na with two isomers (22mNa and 24mNa).

23Na is considered as monoisotopic element meaning it has a single stable isotope making it primordial isotope. 23Na is a single isotope since earth was formed. It has a standard atomic mass of 22.989 769 28(2) u.

22Na, a positron-emitting isotope with a long half life = 2.605 years. It is used to create test objects and point sources for PET or positron emission tomography.

Related Questions

Why don’t water and oil mix when the two liquids are poured into the same container?
True or False: the force of attraction that holds two atoms together is called a chemical bond
Which requires the removal of heat, melting or freezing?Is it evaporation? What is it? Why?
What are eight elements named after towns
Is cl metal nonmetal or metalloidor metalloid

1.) Independent Variable:_________________________________________2.) Dependent Variable:___________________________________________
3.) Control:_______________________________________________________

Answers

Independent Variable Total Weight Added (g)
Dependent Variable Volume of Air in Syringe (mL)
Control Variable Syringe used, Clip/Clamp used to seal syringe, Ring stand used 

Fill in the blanks rigids have ..... volume and.....

Answers

Jojo is this really u

Which is an example of potential energy

Answers

Answer:

A coiled spring.

Wheels on roller skates before someone skates.

An archer's bow with the string pulled back.

A raised weight.

Water that is behind a dam.

A snow pack (potential avalanche)

A quarterback's arm before throwing a pass.

A stretched rubber band

Explanation:

its prteey much energy that could potentialy happen

Answer: coiled spring

Explanation: please give me brainlest

Why are the surface temperature on the moon more extreme than the surface temperature on earth

Answers

Because The moon doesn't have an atmosphere unlike Earth.
The surface temperature on the moon more extreme than the surface temperature on earth because the moon doesn't have an atmosphere.

What properties do scientists use to identify minerals

Answers

Scientists use-
Hardness

Streak

Density

Specific Gravity

ColorCrystal Shape.LusterCleavage/Fracture
           
cleavage gardness color and refection are a few 

Read the following selection from the section "What Is Intubation?"Having a tube down your throat isn't exactly pleasant because it affects a patient's ability to talk
or eat. But it's important for getting the right amount of air into the lungs.
Which answer choice BEST supports the idea that intubation is a necessary part of ventilator treatment?
(A) But when the lungs fill up with fluid or become highly inflamed, the lungs can't expand enough, Lutchen
says.
(B) This actively pushes air into the lungs and can keep the levels of oxygen and carbon dioxide in the
blood close to normal.
(C) If the ventilator simply blew into a person's mouth, the air might expand their cheeks or leak out of their
noes instead of going into the lungs, he says.
(D) When the lungs are damaged, the millions of balloons take in oxygen and release carbon dioxide
differently than when they are healthy, he says.

Answers

Answer:

It may be required when respiratory distress or airway integrity cannot be achieved or maintained for any reason.

(B) This actively pushes air into the lungs and can keep the levels of oxygen and carbon dioxide in the

blood close to normal.

Explanation: