Chemistry, 08.02.2021 19:40 doritasanchez

The electron configuration of an element is 1s22s2. How many valence electrons does the element have? (1 point) a 1 b 2 c 3 d 4

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 10:00, winstonbendariovvygn

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Answers: 3

continue

Chemistry, 22.06.2019 17:30, latezwardjr15

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

Answers: 2

continue

Chemistry, 22.06.2019 21:20, brendonvernon8

Juju.01) 5 geologic events a group of students designed an experiment in an ice rink to represent the solar system. the steps of the experiment are listed below. 5: geologic events 1. choose a student to represent the sun. the planets are represented by two tennis balls. 2. ask the student to hold the tennis balls in each palm and spin on the ice with arms stretched out. 3. ask the student to draw in the arms after about 10 spins. 4. observe the student's arms rotate faster when they are closer to the body. 05 geologic events enors) the experiment most likely demonstrates that (2 points) 07 discussion-based sessment/module planets exert gravitational force on the sun the sun exerts gravitational force on the planets 3.07 discussion-based ssessment speed of a planet depends on its distance from the sun new version available! (3.0.119) get it now submit 18.07: module exam description

Answers: 3

continue

Chemistry, 23.06.2019 09:30, noeliaalvarado

Which element below could be and isotope of this atom

Answers: 1

continue

You know the right answer?

The electron configuration of an element is 1s22s2. How many valence electrons does the element have...