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 15 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 15 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
17,624,289 questions answered
Popular Conversations
Which of the following is correct? A. The purine G bonds with the ...
Weegy: B. The purine C bonds with the pyrimidine G. User: The purines in DNA are A. thymine and ...
10/1/2014 2:38:30 PM| 3 Answers
antonym of prevented ...
10/1/2014 9:05:38 AM| 3 Answers
Simplify the expression. (3x - 1)(x^2 + 2x - 4) User: 3x+2(x+5) ...
Weegy: 1+tan^2(x) = sec^2(x) 1+cot^2(x) = csc^2(x) (1+tan^2(x)) / (1+cot^2(x) = sec^2(x) / csc^2(x) = ...
10/1/2014 1:46:20 AM| 3 Answers
The pressure of ocean water increases as depth increases. User: The ...
Weegy: It originates in the Gulf of Mexico and, as the Florida Current, passes through the Straits of Florida and then ...
9/30/2014 6:27:02 AM| 3 Answers
The densest ocean water is generally found a. in the surface ...
Weegy: A. in the surface zone User: In which zone is ocean temperature most affected by the weather? a. transition ...
9/30/2014 6:07:25 AM| 3 Answers
What is planter flexion?
10/1/2014 1:37:43 PM| 2 Answers
what is weegy
Weegy: Weegy also has a montly point contest. [ The experts with the most points per month wins extra money! I haven't ...
10/1/2014 12:19:15 PM| 2 Answers
Who is Harry Bailly?
10/1/2014 11:54:52 AM| 2 Answers
What is an overdraft?
10/1/2014 11:23:22 AM| 2 Answers
Weegy Stuff
S
L
1
L
P
C
1
P
C
1
Points 92 [Total 9574]| Ratings 0| Comments 92| Invitations 0|Offline
S
L
1
1
1
1
L
1
L
Points 42 [Total 12417]| Ratings 0| Comments 42| Invitations 0|Online
S
1
L
1
L
P
P
L
Points 38 [Total 12267]| Ratings 0| Comments 38| Invitations 0|Offline
S
1
L
L
Points 34 [Total 5828]| Ratings 0| Comments 34| Invitations 0|Online
S
Points 10 [Total 10]| Ratings 1| Comments 0| Invitations 0|Offline
S
1
L
1
Points 10 [Total 3354]| Ratings 1| Comments 0| Invitations 0|Offline
S
P
C
L
P
L
1
Points 6 [Total 6240]| Ratings 0| Comments 6| Invitations 0|Offline
S
Points 2 [Total 37]| Ratings 0| Comments 2| Invitations 0|Offline
S
Points 1 [Total 214]| Ratings 0| Comments 1| Invitations 0|Offline
S
1
L
Points 1 [Total 3077]| Ratings 0| Comments 1| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.