Chemistry, 21.01.2022 17:30 MannyBanko1350
Consider a Si atom with a charge of -2 and a mass number of 28.
This type of ion is called alan
How many protons in the nucleus?
How many neutrons in the nucleus?
How many electrons in the electron cloud?
If this Si lost 2 electrons, what would the charge be?
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 03:30
If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.
Answers: 1
Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
Chemistry, 22.06.2019 11:00
The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
Answers: 1
Chemistry, 22.06.2019 21:00
Which of the following is a physical property flammability heat of combustion solubility and toxicity
Answers: 1
You know the right answer?
Consider a Si atom with a charge of -2 and a mass number of 28.
This type of ion is called alan
Questions
Physics, 21.09.2019 08:10
Biology, 21.09.2019 08:10
History, 21.09.2019 08:10
Mathematics, 21.09.2019 08:10
Biology, 21.09.2019 08:10
History, 21.09.2019 08:10
Mathematics, 21.09.2019 08:10
History, 21.09.2019 08:10
Computers and Technology, 21.09.2019 08:10
Biology, 21.09.2019 08:10
Health, 21.09.2019 08:10
Advanced Placement (AP), 21.09.2019 08:10
