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 94 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 94 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
18,795,587 questions answered
Popular Conversations
The US is the world’s leading producer of ...
12/19/2014 6:33:14 AM| 2 Answers
Solve: 2x + 16 = 40
Weegy: 2x + 3 = 5; 2x = 5 - 3; 2x = 2; x = 2/2; x = 1 User: Factor: x2 - 12x + 27
12/19/2014 7:51:37 AM| 2 Answers
monologue User: Shepheardes Calender
12/19/2014 11:08:20 AM| 2 Answers
Find the product mentally. (2m - 9)2
Weegy: 3-3 = 0 User: Select the correct product. (a + 8)(b + 3)
12/19/2014 11:08:48 AM| 2 Answers
Find the product mentally. (ab + 3)(ab - 3)
Weegy: 3-3 = 0 User: Find the product. (r + s)2
12/19/2014 11:11:21 AM| 2 Answers
Selena Gomez
Weegy: Selena Gomez is a celebrity and she does not give her phone number to public due to security purposes. User: ...
12/19/2014 1:00:12 PM| 2 Answers
Jim is beginning his research on franchise businesses in order to ...
Weegy: Jim is beginning his research on franchise businesses in order to find one that meets his needs. A quick, easy ...
12/19/2014 5:55:22 PM| 2 Answers
Weegy Stuff
S
L
P
Points 1083 [Total 4927]| Ratings 0| Comments 1083| Invitations 0|Offline
S
L
Points 695 [Total 1386]| Ratings 1| Comments 685| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
Points 663 [Total 14848]| Ratings 0| Comments 663| Invitations 0|Offline
S
Points 654 [Total 654]| Ratings 1| Comments 644| Invitations 0|Offline
S
P
C
L
P
L
1
Points 88 [Total 6407]| Ratings 1| Comments 78| Invitations 0|Offline
S
L
Points 68 [Total 1528]| Ratings 1| Comments 58| Invitations 0|Offline
S
1
L
L
Points 33 [Total 6700]| Ratings 0| Comments 33| Invitations 0|Offline
S
Points 30 [Total 30]| Ratings 0| Comments 0| Invitations 3|Offline
S
Points 23 [Total 29]| Ratings 0| Comments 23| Invitations 0|Offline
S
Points 22 [Total 22]| Ratings 0| Comments 2| Invitations 2|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.