Which two particles each have a mass approximately equal to one atomic mass unit?

(1) electron and neutron

(2) electron and positron

(3) proton and electron

(4) proton and neutron

What is the definition of tributary

The si unit used to measure the activity of a radioactive sample is called the

After observing (you can repeat the process more than once), write a general statement explaining how reducing the volume changes molecular motion, temperature, and pressure. When the volume of the container is decreased.

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. Moss campion is one of the plants found in the alpine biome.

Which of the items adopts neither the shape nor the volume of its container? helium in a balloon soda in a bottle coin in a bag

What is a scientific explanation for a range of hypotheses and observations supported by testing

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?