Un element Y inconnue appartient a la meme periode que le magnesium (12Mg) et son schema de Lewis est: Y. a) ecrire la configuration electronique de l'atome Mg.
b) identifier l'element Y.
c) un element X appartient a la meme periode que Y et a la meme valence. Identifer X.
d) identifier la nature de la liaison qui pourrait lier (X) et (Y)

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.