it's a review for our exam.
a ____ is formed by a liquid at its surface in a tube, and can be shaped upwards or downwards.
also..
what is the the Relative Mass for protons, neutrons, and electrons?
thanks a ton :]
To answer your first question, the term you are looking for is "meniscus." A meniscus is formed by a liquid in a tube due to surface tension. It can be either concave (shaped downwards) or convex (shaped upwards) depending on the intermolecular forces between the liquid and the tube.
Now, onto your second question. The relative mass of particles is often compared to the mass of a proton. Here are the relative masses for each:
- Proton: The relative mass of a proton is considered to be 1. This means that it is used as the standard unit for comparison.
- Neutron: Similar to a proton, the relative mass of a neutron is also approximately 1.
- Electron: Compared to protons and neutrons, electrons have a significantly smaller mass. The relative mass of an electron is approximately 0.0005, which makes it about 1/1836 times lighter than a proton.
It's important to note that these relative masses are not exact, but they provide a useful comparison to understand the mass differences between these subatomic particles.