Seudónimo Seudónimo

19-02-2021
Biology

contestada

What element has 1 valence electrons and 4 energy levels?

Respuesta :

karasimpson0204 karasimpson0204

19-02-2021

Answer:

Hydrogen and helium, both in the first period, have their valence electrons in the principal energy level n=1

Explanation:

Answer Link

BrittneyP3321 BrittneyP3321

19-02-2021

Answer:

Hydrogen and Helium

Explanation:

Answer Link

Otras preguntas

solve 3x+4+7x+8+7x3+7x3

What is the difference between rocks and minerals?

Can 2/10 be simplified

From your knowledge of Global Studies, how did the areas settled by the Greeks differ from the early settlements of the Fertile Crescent region, the Nile River

Identify each of the following compounds as binary or ternary. Then write the chemical formula for each ionic compound. Nickel(III)oxide Copper (II)iodide Tin(I

HOW DID HANFEIZI BELIEVE HAT PEOPLE NEEDED LAWS AND PUNISHMENTS

Which is evidence that scientists use to support the big bang theory? A. The outer planets are mostly composed of hydrogen and helium. B. Earth is the only plan

the material used to plug the eye sockets in ancient egypt

Water Molecule The part of a water molecule nearest the oxygen atom and farthest away from the hydrogen atoms has a(n) A. slight positive charge. B. slight nega

Julia has 8 red Barret es .two fourths of her barrettes are red .how many barrettes does Julia have?