Mathematics, 27.09.2020 22:01 paigejosie6473
What was observed that led to the arrangement of sixty-three already-known elements by increasing atomic weights in the periodic table?
A. A repetition occurs in chemical and physical properties.
B. An atomic weight corresponds to the existing abundance.
C. The number of neutrons and protons increased by one.
D. The chemical compounds formed by the elements increased by one.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 16:30
What could explain what happened when the time was equal to 120 minutes
Answers: 2
Mathematics, 21.06.2019 22:30
Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.
Answers: 1
Mathematics, 22.06.2019 00:30
Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?
Answers: 1
You know the right answer?
What was observed that led to the arrangement of sixty-three already-known elements by increasing at...
Questions
Mathematics, 29.09.2019 11:10
History, 29.09.2019 11:10
Geography, 29.09.2019 11:10
Mathematics, 29.09.2019 11:10
Mathematics, 29.09.2019 11:10
Biology, 29.09.2019 11:10
Social Studies, 29.09.2019 11:10
Mathematics, 29.09.2019 11:10
