Is the number of atoms in one mole is so large thst it is expressed in sceintific notarion true or false

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

In a covalent bond, two atoms are held together by the attraction between . the number of covalent bonds that an atom can form depends on the number of in the atom.