Question

HELP ASAPPP ONLY GOT 4 MINUTES
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 magnesium (Mg). (4 points)

Part 2: Determine the number of protons, electrons, and neutrons present in an atom of potassium (K). Explain how you determined your answer using complete sentences. (6 points)

Answer 1

Answer:

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Explanation:

the process in which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water

Answer 2

Answer:

idk what that guy said but here's the answer

Explanation:

P1: strontium magnesium and calcium have same properties.

P2:

The atomic mass has been the sum of the number of protons and neutrons, while the atomic number has been the number of electrons in an element.

Atom number of potassium is 19.

The atomic number of potassium has been 19, thus the number of electrons has been 19. The number of electrons and protons has been equal for an atom.

Number of electrons = 19

Number of protons = 19

Number of neutrons = 20

__________________

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