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Q: Which of these pairs of elements have the same number of valence electrons? (1 points) A) hydrogen (H) and helium (He) B) sodium (Na) and potassium (K) C) carbon (C) and oxygen (O) D) boron (B)
and beryllium (Be)
A: B) sodium (Na) and potassium (K)
Expert answered|workaholicmom|Points 4587|
Question|Rated good
Asked 6/13/2011 7:56:34 AM
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Questions asked by the same visitor
Which results from water's formation of hydrogen bonds? (1 points) A) Water has surface tension. B) Hydrogen and oxygen form ionic bonds. C) Water is a versatile solvent. D) The specific heat of water is lower than most solids.
Weegy: b. (More)
Question
Expert Answered
Updated 10/9/2014 6:33:48 PM
4 Answers/Comments
The answer is A.) Water has surface tension.
Added 6/13/2011 7:04:22 PM
Water has surface tension - results from water's formation of hydrogen bonds.
Added 10/9/2014 6:33:48 PM
This answer has been confirmed as correct, not copied, and helpful.
How many valence electrons does strontium (Sr) have? (1 points) A) 1 B) 2 C) 5 D) 6
Question
Not Answered
Updated 8/12/2015 6:36:22 PM
1 Answer/Comment
Strontium (Sr) have 2 valence electrons.
Added 8/12/2015 6:36:22 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [8/12/2015 8:09:50 PM]
Which non-metal below is most reactive? (2 points) A) chlorine (Cl) B) helium (He) C) silicon (Si) D) argon (Ar)
Question
Not Answered
Updated 7/24/2014 7:02:21 AM
1 Answer/Comment
Chlorine (Cl) is most reactive.
Added 7/24/2014 7:02:21 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [7/24/2014 7:11:33 AM], Rated good by jeifunk
Which statement is true about two isotopes of the same element? (2 points) A) They have the same mass number. B) They have different numbers of protons. C) They have different locations on the periodic table. D) They have different numbers of neutrons.
Question
Not Answered
Updated 3/20/2016 2:10:48 PM
1 Answer/Comment
They have different numbers of neutrons is true about two isotopes of the same element.
Added 3/20/2016 2:10:48 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [3/20/2016 8:20:01 PM]
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