Chemistry, 07.07.2019 11:00 melanie1055
What is the electron configuration of an element with atomic number 20? a. 1s2 2s2 2p6 3s2 3p5 b. 1s2 2s2 2p6 3s2 3p6 c. 1s2 2s2 2p6 3s2 d. 1s2 2s2 2p6 3s2 3p6 4s2 e. 1s2 2s2 2p6
Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 11:00
Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that canāt be observed.
Answers: 1
Chemistry, 22.06.2019 15:00
Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.
Answers: 2
Chemistry, 23.06.2019 05:00
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?
Answers: 3
You know the right answer?
What is the electron configuration of an element with atomic number 20? a. 1s2 2s2 2p6 3s2 3p5 b. 1...
Questions
Physics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
