ecarter8 ecarter8

01-11-2018
Chemistry

contestada

Which elements have only one electron orbit or shell? A. hydrogen (H) and helium (He) B. helium (He) and lithium (Li) C. krypton (Kr) and iron (Fe) D. hydrogen (H) and calcium (Ca)

Respuesta :

ChristianAlexander ChristianAlexander

01-11-2018

2.1 Electrons, Protons, Neutrons, and Atoms

Hydrogen H 1

Helium He 2

Lithium Li 3

Beryllium Be 4

Answer Link

Otras preguntas

Item 18 You and your friend gather 56 apples. You gather 29 apples. Let a be the number of apples your friend gathers. Write an equation you can use to find a.

Prepositions I need help

What is the product? to (5r+2)(3r-4)

The manga carta did what

What is the appropriate proportion if the southern population to northern population

One difference between humans and bacteria is that A) humans are living, but bacteria are non-living. B) bacteria are composed of cells, but humans are n

What is a polder?a farm surrounded by canalsa windmill that powers water pumpsa system of "dìkes" to hold back seawatera piece of land reclaimed from the sea

Complete the tables of values.

Which of the following is an example of a good topic for a how-to essay? A. A task that is easy for you to explain to others, but that isn’t particularly intere

How many programs are at CTSO