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
Nuetrik [128]
2 years ago
7

platinum has a mass number of 195 and contain 74 electron. how many proton and neutrons does it contain?​

Chemistry
1 answer:
yuradex [85]2 years ago
4 0

Answer:

...

Explanation:

p is equal to atomic number so p=74

electron also equal to atomic number if it doesn't have charge so electron =74

neuralon=atomic mass -atomic number so 195-74=121is neutron

You might be interested in
An element's atomic number is 87. how many protons would an atom of this element have
andreev551 [17]
atomic number is equal to proton number
so the proton number will be 87
5 0
3 years ago
Can the nature of a reactant be altered to speed up reaction
Step2247 [10]

Answer:

yeet

Explanation:

yeet

6 0
3 years ago
I need help fast...........
guapka [62]

Answer:

I think its might be 1 because the ionic numbers for CA is +2 and for P its +3

8 0
2 years ago
A six-carbon organic compound containing oxygen is suspected of being either a secondary alcohol or a ketone. which chemical or
White raven [17]
Following are the possible isomers of secondary alcohol and ketones for six carbon molecules. In order to distinguish between sec. alcohol and ketone we can simply treat the unknown compound with acidified Potassium Dichromate (VI) in the presence of acid. If with treatment with unknown compound the colour of K2Cr2O7 (potassium dichromate VI) changes from orange to green then it is confirmed that the unknown compound is sec. alcohol, or if no change in colour is detected then ketone is confirmed. This is because ketone can not be further oxidized while, sec. alcohol can be oxidized to ketones as shown below,

6 0
3 years ago
1.The layers of the atmosphere are characterized by changes in ?
bearhunter [10]

Answer:

1 temperature 2 weather 3 the stratosphere 4 decreases 5 increases

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • N2 + 3H2 2NH3 How many molecules of H2 are in the reaction? molecules How many nitrogen atoms are present? atoms How many moles
    5·1 answer
  • Line spectra from all regions of the electromagnetic spectrum, including the Paschen series of infrared lines for hydrogen, are
    12·1 answer
  • If the theoretical yield of RX is 56.0 g , what is the percent yield ?
    12·1 answer
  • How many grams of O2 are produced as 0.033 mol of water decompose
    14·1 answer
  • Calculate Δ H ∘ in kilojoules for the reaction of ammonia (Δ H ∘ f =−46.1 kJ/mol) with O 2 to yield nitric oxide NO (Δ H ∘ f =91
    14·1 answer
  • James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air conditione
    9·2 answers
  • Im literally failing some classes can some one help me with them
    7·2 answers
  • Can someone answer me I need an answer
    5·1 answer
  • What is the approximate total number of atoms in 1.0 mole of lithium?
    10·1 answer
  • Someone pls help me I will mark you as brain
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!