Question and answer
How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 125 contain? a 70 neutrons, 75 protons, 50 electrons b 120 neutrons, 50 protons, 75 electrons c 50
protons, 50 electrons, 75 neutrons d 75 electrons, 50 protons, 50 neutrons
50 protons, 50 Electrons and 75 Neutrons. The Atomic number is the number of protons in the nucleus of an atom, while the mass number is the sum of the protons plus the neutrons. [ The electrons have near 0 mass so they don't add up to the mass number and unless the atom is an isotope, the number of protons is always equal to those of electrons. ]
Expert answered|wisbest|Points 1806|
Question
Asked 2/8/2013 4:16:49 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
If 20.0 grams of Ca combines completely with 16.0 grams of S to form a compound, what is the percent composition of Ca in the compound? a 1.25% b 20.0% c 44.4% d 55.6%
Weegy: 44.4% is the percent composition of S in the compound. User: If 20.0 grams of Ca combines completely with 16.0 grams of S to form a compound, what is the percent composition of Ca in the compound? Weegy: The total mass of the compound is 20 + 16 g, or 36 g. Of that 36 g, 20 is Ca. [ So the fraction of Ca is 20 / 36. To change that to % multiply by 100, so.. % Ca is 20 / 36 X 100% or 55.555555% ( ] (More)
Question
Expert Answered
Asked 2/1/2013 11:23:09 PM
0 Answers/Comments
The lowest whole-number ratio of the elements in a compound is called the a empirical formula b molecular formula c binary formula d representative formula
Weegy: C. empirical formula User: What is the empirical formula of a substance that is 53.5% C, 15.5% H, and 31.1% N by weight? A) C3HN2 B) C4H14N2 C) C2H7N D) CH4N7 Weegy: Empirical formula: C2H7N User: Which of the following is NOT true about empirical and molecular formulas? a The molecular formula of a compound can be the same as its empirical formula. b The molecular formula of a compound can be some whole-number multiple of its empirical formula. c Several compounds can have the same empirical formula, but have different molecular formulas. d The empirical formula of a compound can be triple its molecular formula. (More)
Question
Expert Answered
Asked 2/1/2013 11:31:49 PM
0 Answers/Comments
Which of the following compounds has the lowest percent gold content by weight? A) AuOH B) Au(OH)3 C) AuCl3 D) AuI3
Weegy: compounds has the lowest percent gold content by weight: D) AuI3 molar mass AuOH = 213.997 g/mol % Au = 196.97 x 100 / 213.997 = 92.1 molar mass Au(OH)3 = 247.99 g/mol % Au = 196.97 x 100 / 247.99=79.4 molar mass AuCl3 = 303.329 g/mol % Au = [ 196.97 x 100/ 303.329=64.9 molar mass AuI3 = 577.682 g/mol % Au = 196.97 x 100 / 577.682 =34.1 ] User: Which of the following compounds have the same empirical formula? A) CO2 and SO2 B) C7H14 and C10H20 C) C4H10 and C10H4 D) C6H12 and C6H14 (More)
Question
Expert Answered
Asked 2/1/2013 11:28:03 PM
0 Answers/Comments
Write the slope intercept form of the equation of the line that passes through (-2, -3) and (2, -5). a y = -2x - 7 b y = 1/2x + 4 c y = -1/2x - 4 d y = -2x + 1
Question
Not Answered
Updated 131 days ago|9/16/2014 7:50:10 AM
1 Answer/Comment
y = -1/2x - 4 is the equation that writes in the slope intercept form of the equation of the line that passes through (-2, -3) and (2, -5 ) .
Added 131 days ago|9/16/2014 7:44:39 AM
Deleted by jeifunk [9/16/2014 7:50:06 AM], Undeleted by jeifunk [9/16/2014 7:50:08 AM]
Find the slope of the line x = -3. a -3 b 0 c 3 d undefined User: Find the slope of the line x = -3. a -3 b 0 c 3 d undefined
Weegy: Undefined slope is when the line is vertical, and the slope is infinite (technically). Any y value is irrelevant in this kind of line, so in slope intercept, the equation is x = -3. [ Putting it in standard form, you get x + 3 = 0 The answer is x + 3 = 0. I hope this is helpful. :) ] User: Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is y = 2/5x - 8. a y = 2/5x - 8 b y = 2/5x + 58/5 c y = -5/2x + 21 d y = -5/2x - 29 Weegy: y = -5/2x - 29 (More)
Question
Expert Answered
Asked 2/2/2013 9:36:24 PM
0 Answers/Comments
19,144,729 questions answered
Popular Conversations
Which is the subordinate clause in the sentence? Some additional ...
Weegy: The subordinate clause in the sentence - Some additional clues were found when a small pit, with linen bags and ...
1/25/2015 12:11:26 AM| 1 Answers
Which of the following was true of Nixon's presidency? A. It ...
Weegy: D. It oversaw the establishment of the Environmental Protection Agency. Is true of Nixon's presidency. User: ...
1/25/2015 12:16:49 AM| 1 Answers
Simplify the expression: 3 square root of 5/64
1/25/2015 12:29:25 AM| 1 Answers
Determine the equation of g(x) that results from translating the ...
Weegy: The equation of g(x) that results from translating the function f(x) = x^2 + 1 upward 2 units is g(x) = x^2 + 3. ...
1/25/2015 12:57:14 AM| 1 Answers
The changing cost of money is referred to as
1/25/2015 1:47:25 AM| 1 Answers
Weegy Stuff
S
L
Points 1655 [Total 1676]| Ratings 0| Comments 1655| Invitations 0|Offline
S
L
P
L
P
Points 1229 [Total 6506]| Ratings 0| Comments 1229| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
P
Points 563 [Total 15574]| Ratings 0| Comments 563| Invitations 0|Offline
S
L
Points 438 [Total 1119]| Ratings 2| Comments 418| Invitations 0|Offline
S
1
L
L
Points 178 [Total 6878]| Ratings 0| Comments 178| Invitations 0|Online
S
P
C
L
P
L
1
Points 90 [Total 6678]| Ratings 1| Comments 80| Invitations 0|Offline
S
Points 87 [Total 102]| Ratings 0| Comments 87| Invitations 0|Offline
S
L
Points 73 [Total 1634]| Ratings 0| Comments 73| Invitations 0|Online
S
Points 63 [Total 445]| Ratings 0| Comments 63| Invitations 0|Offline
S
Points 50 [Total 52]| Ratings 0| Comments 0| Invitations 5|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.