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
kolbaska11 [484]
3 years ago
5

One isotope of a metallic element has the mass number 67 and 37 neutrons in the nucleus. The cation derived from the isotope has

28 electrons. Write the atomic symbol for this element.
Chemistry
2 answers:
Anuta_ua [19.1K]3 years ago
6 0
No. Of protons = mass no. - no. Of neutrons
No. Of protons = 67 - 37
= 30
No. Of electrons = 28

Zinc will have 30 protons and 28 electrons. So, it will have +2 charge

Symbol - Zn^+2
miv72 [106K]3 years ago
5 0

Answer:

Zinc: Zn

Explanation:

The mass number of element is 67

mass number = number of protons + number of neutrons

So number of protons = 67-37=30

Thus the atomic number of element is 30

the atom with atomic number 30 is zinc

On losing 2 electrons it will form dipositive ion which will have 28 electrons

The symbol of element is Zn

You might be interested in
suppose you're outside on a hot date and you moving to the shade of a tree which form of energy transfer are you avoiding?​
katovenus [111]

Answer:

Radiation

Explanation:

A sun transfers energy by radiation. However, there are three different modes of heat energy transfer -

a)  Radiation

b) Conduction

c) Convection

Since sun is a at a very far distance from earth, it cannot transfer its heat energy by conduction as for this mode of heat transfer two bodies need to be in touch with each other.

For convection mode of heat transfer a medium is required but for transfer of sun's energy (which is electromagnetic radiation) no medium is required.

Hence, Sun will transfer energy by radiation only.

Hope This Helps!!! <3

5 0
3 years ago
Ammonia (nh3) is widely used as a fertilizer and in many household cleaners. how much ammonia is produced when 6.64 mol of hydro
olga55 [171]
N₂ + 3H₂ ⇒ 2NH₃

doesnt matterN₂ + 6.64H₂ ⇒ 2NH₃

(6.64H₂/3H₂) x (2NH₃) =4.4266667

rounded to sig figs= 4.43

5 0
3 years ago
I am so bored someone talk
kolezko [41]

Answer:

hello.

Explanation:

you wanted to talk? well here I am

5 0
2 years ago
Determine whether each of the properties described applies to volumetric or graduated glassware. 1. Used for applications in whi
kogti [31]

Answer:

1) volumetric

2) graduated

3) volumetric

Explanation:

A volumetric glassware is a glassware that is marked at a particular point. A typical example of a volumetric glassware is the volumetric flask. A volumetric glassware is capable of measuring only a specific volume of a liquid.

On the other hand, graduated glassware can measure a range of volumes of liquid. However, a volumetric glassware is still required where a high degree of accuracy is important.

5 0
3 years ago
Gu
Andrei [34K]

According of Dalton's law of Partial pressure, the total pressure of a mixture of gases is the sum of the partial pressures of the individual vases in the mixture.

Hence;

The for hydrogen collected over water, we have a mixture of hydrogen gas and water vapour.

Total pressure = pressure of hydrogen gas + vapour pressure of water

Pressure of hydrogen gas = Total pressure - vapour pressure of water

Pressure of hydrogen gas = 636 mmHg - 28.3 mmHg

Pressure of hydrogen gas = 607.7 mmHg

7 0
2 years ago
Other questions:
  • What is the most significant breakthrough in forensic science since the development of fingerprinting?
    13·1 answer
  • What is a crack in Earths crust along which eathquakes occur??
    8·1 answer
  • PLEASE HELP! I will give brainliest
    12·1 answer
  • A ballon is filled with helium gas. Another balloon, of the same size, is filled with nitrogen gas. Explain why the ratio of the
    15·1 answer
  • What chemical is discovered to react to light in the 1700s?
    5·2 answers
  • HELP NEEDED 20POINTS i have alot of questions of PATTERNS OF INHERITANCE
    14·2 answers
  • Dimensional analysis, Plz hell I don’t understand and plz explain
    5·1 answer
  • Indicate which of the following criteria are important for the selection of a buffer to use in an in vitro biochemical reaction.
    11·1 answer
  • Which of the following is the balanced chemical equation that represents the chemical reaction of hydrogen and oxygen to produce
    9·1 answer
  • What does a virus inject into a cell?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!