Denise heats a beaker of dilute acid on a hot plate in a fume hood. What should Denise wear to best protect herself when she transports the beaker to a balance outside the hood?
heat-proof gloves, a lab coat, and close-toed shoes
goggles, a lab coat, and close-toed shoes
goggles, a lab coat, and heat-proof gloves
goggles, a lab coat, heat-proof gloves, and close-toed shoes

Denise should wear to best protect herself when she transports the beaker to a balance outside the hood are "goggles, a lab coat, heat-proof gloves, and close-toed shoes".

Option: D

Explanation:

In chemical laboratory either a researcher carry an experimental activity or just present for some another purpose, it is mandatory for an individual to wear safety googles for the protection of eyes from any sudden spark or chemical bumping.

A lab coat is a type of skin for researchers to prevent them from any stain or stress on sensitive skin. While performing experiments heat agents like burner, acid beaker etc should be handled by wearing heat-proof gloves only. A close-toes shoes prevent foots from any chemical bumping, slipping, maintaining balance, rush etc.

Its D.

Explanation:

Right on edge.

Explanation:

An atom which has greater difference in the number of number of protons and neutrons will be unstable in nature. This is because then nuclear binding energy will not be strong enough to hold the neutrons and protons together.

For example, and are both radioactive in nature due to large difference in the number of protons and neutrons.

Whereas for and there is not much difference in the number of protons and neutrons.

Thus, we can conclude that both Pu and Th elements tend to be radioactive in nature.