Social Studies, 16.01.2021 01:00, josh11742
Use the portion of the periodic table shown below to answer the questions.
A portion of the first three columns of the periodic table is shown. Column one from top to bottom reads 11 sodium 22.990, 19 potassium 39.098, and 37 rubidium 85.468. Column two reads 12 magnesium 24.305, 20 calcium 40.078, and 38 strontium 87.62. Column three reads 21 scandium 44.956 and 39 yttrium 88.906.
Part 1: Name two elements that have the same properties as potassium (K). (4 points)
Part 2: Determine the number of protons, electrons, and neutrons present in an atom of magnesium (Mg). Explain how you determined your answer using complete sentences. (6 points)
Answers: 2
Social Studies, 22.06.2019 12:30, braines2003
Which features are created on the exterior of a volcano when it erupts? check all that apply. vent crater hot spot lava flow boundary
Answers: 1
Social Studies, 23.06.2019 04:31, alialbinn6969
The economic crash that began in 1929 was called the great recession, great depression, great slump, great revolution
Answers: 1
Use the portion of the periodic table shown below to answer the questions.
A portion of the first t...
Engineering, 05.03.2021 05:50
Mathematics, 05.03.2021 05:50
Health, 05.03.2021 05:50