Chemistry, 13.12.2020 09:30 unicornsrule26
Hello can u answer these quickly?
1- If element X has 6 protons. How many electrons does it have?
2- If element Y has 10 protons. What is its atomic number?
3- If element Z has 15 protons & 17 neutrons. What are its number of electrons, atomic number & mass number?
4- If element A has 7 electrons & 9 neutrons. How many protons does it have? And what is its atomic number?
1- If the atomic number of an element is 15 & its mass number is 31? How many protons & neutrons does this element have?
2- If element B has 9 electrons. Find the number of protons & atomic number.
3- If the mass number of element A is 60 & number of neutrons is 33. Find its number of protons & its atomic number.
Answers: 2
Chemistry, 22.06.2019 04:00
Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral
Answers: 3
Chemistry, 22.06.2019 14:20
Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull
Answers: 1
Chemistry, 22.06.2019 22:00
If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution
Answers: 3
Hello can u answer these quickly?
1- If element X has 6 protons. How many electrons does it have? <...
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