Chemistry, 02.12.2021 23:20 PinkDivaGirl02
The table shows the amount of radioactive element remaining in a sample over a period of time.
Radioactive decay
Amount of radioactive sample(grams) Time (hours)
186.0 0
147.0 7
117.0 14
93.0 21
23.3 63
Part 1: What is the half-life of the element? Explained how you determined this.
Part 2: How long would it take 320 g of the sample to decay to 2.5 grams? Show your work or explain your answer.
Answers: 2
Chemistry, 22.06.2019 08:30, melikefood01
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 22.06.2019 13:10, bartonamber4042
Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
Answers: 1
Chemistry, 22.06.2019 15:40, alleshia2007
Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n
Answers: 2
The table shows the amount of radioactive element remaining in a sample over a period of time.
Rad...
Mathematics, 04.07.2019 22:30
Mathematics, 04.07.2019 22:30
Mathematics, 04.07.2019 22:30
Geography, 04.07.2019 22:30
English, 04.07.2019 22:30