Aluminum ion symbol when loses its valence electrons

The electron configuration below represents a ground-state atom of which element? 1s22s22p63s23p4

A red blood cell has a round structure. A muscle cell has a long, thin structure. Which statement best explains why these two types of cells have different structures

The solid above sink to the bottom when you put a container filled with it what does that tell you about density

This element is in the same family as lead, has fewer protons than krypton, and more protons than iron.

An atom of element A has 11 protons. What would the element's atomic number be? Your Answer:

In today's experiment, some lab students let their chromatograms elute slightly longer than others. If one student's solvent front traveled to 9.80 cm, and another student's solvent front traveled 8.

What does squeezing do to the particles of snow or ice?

The strong nuclear force holds together which two particles in an atom? Electrons and neutrons Protons and electrons Neutrons and protons Neutrons and beta particles

How many moles in 2.0g of carbon dioxide?

Why do the nuclides that are used as radiotracers have short half-lives?