carlos6178 carlos6178

10-12-2017
Chemistry

contestada

What is the name of the element with a valence electron configuration of 4s^2

Respuesta :

wluo329 wluo329

10-12-2017

It is in period 4 bc it has a 4 in 4s2. Look at last element in that period. It is Krypton(36). The extra 2 electrons are from 4s^2. Add 36 + 2 to get 38, or Strontium.

Answer Link

Otras preguntas

please answer these questions in this picture. 25 points if you help

Which of the following is not one of the ILO’s four core labor standards? A. the abolition of child labor B. the elimination of forced and compulsory labor C. t

A plant grew 1/8 in in the first week of the month and 5/8 in the rest of the month how much did the plant grow for the entire month

Where do the materials used to make electronic devices come from

Please help me.It's due tommorow. Answer ASAP

Which of the following is a common subject of Teodor Núñez Ureta's paintings? Andean peasants Cuzco city life traditional Peruvian food the Spanish conquest of

If each lap around the track is 400 meters and she runs 4 kilometers each day. How many laps around the track does she run in 3 days

You put 550 in an account that earn 4.4 interest a year how much do u earn in 6 months

Which word in the sentence is a subject complement? Gail was the third runner to cross the finish line. A. line B. cross C. third D. runner. Ple

What is the reflection image of R across the y-axis?