1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yaroslaw [1]
3 years ago
8

An isotope of an element, atomic number Z, has a mass number 2z+4. How many neutrons are there in the nucleus of the element?

Chemistry
2 answers:
DiKsa [7]3 years ago
8 0
A) Z + 4

In the actual atom, half of the nucleus would be protons and the other half neutrons, hence the 2z. The additional four in the expression must be neutrons because adding protons would change the element all together.
Wewaii [24]3 years ago
7 0

Answer:

A) Z+4

Explanation:

Atomic number of the isotope = Z

Mass number of the isotope = 2Z+4.

Atomic number = Number of protons in the atom = Number of electrons in the atom

Mass number = Number of protons in the atom + Number of neutrons in the atom

Hence number of neutrons = Mass number - Number of protons

= 2Z + 4 - Z = Z + 4

Hence the required answer to the question is represented by option A which is Z + 4.

You might be interested in
PLEASE ANSWER ASAP!!!!!!! 50 points if the answer is correct!
Ad libitum [116K]

5

 mL acetic acid

95

mL water

Explanation:

Since

5

%

of the vinegar, by volume, is acetic acid, and we have

100

mL of vinegar, we have

5

mL of vinegar.

Similarly, we have

100

%

−

5

%

=

95

%

being water, so we have

95

mL of water.

8 0
2 years ago
I don't know how to do any of these.plz help.its a study guide for my chemistry exam tomorrow ✌
Vladimir [108]

6.02 x 1023 atoms weigh out 63.55 grams copper.


No. of Molecules in water = 3.5mole x (6.02 x 10^23) molecules/mole = 2.107 x 10^24 molecules of H2O

8 0
3 years ago
What is the ideal gas constant?
sammy [17]
It is a universal constant used for all gases
7 0
3 years ago
A chemical bond results from the mutual attrac- tion of the nuclei for
aleksandrvk [35]

for what????? complete the question

8 0
3 years ago
Read 2 more answers
Look at the atom models you made in today’s activities. Name the three parts of the atom. A. protons, neutrons, and electrons B.
Musya8 [376]
D, protons,molecules, and electrons
5 0
3 years ago
Other questions:
  • At the end of mitosis the cells produced are identical to each other is it True or False
    14·2 answers
  • Consider the molar solubility of SrCO3 in 0.10 M Sr(NO3)2 versus in pure water. Ksp SrCO3 = 5.4 x 10-10 Which statement is true?
    11·1 answer
  • What is the difference between Polar and Non-Polar molecules?
    11·1 answer
  • C=h/[M(T2-T1)] solve for T1
    14·1 answer
  • NaOH is a strong base. What two ions do you expect to find in a solution of NaOH?
    13·1 answer
  • Vitellium (Vi) has the following composition:
    10·2 answers
  • 1a) 2 properties that glass and plastic always share
    10·1 answer
  • A precipitation reaction 2. A Lewis acid-base reaction the produces a coordination complex: A Lewis acid-base reaction the produ
    15·1 answer
  • HELP I NEED HELP ASAPP
    15·1 answer
  • A 12 gram piece of Cu at 475 oC is placed in contact with a 15 gram piece of Cr at 265 oC.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!