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, 23.06.2019 02:00
Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive
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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