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
djyliett [7]
3 years ago
7

Which isotope has 30 neutrons and 32 protons

Chemistry
1 answer:
iragen [17]3 years ago
4 0

Answer:

Germanium

Explanation:

You might be interested in
Which of the following elements is a metalloid​
vladimir1956 [14]

Traditionally they include boron from group 3A, silicon and germanium in group 4A, aresnic and antimony in group 5A and tellurium from group 6A, although sometimes selenium, astatine, polonium and even bismuth have also been considered as metalloids. Typically metalloids are brittle and show a semi-metallic luster.

The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. Five elements are less frequently so classified: carbon, aluminium, selenium, polonium, and astatine.

4 0
3 years ago
Three isotopes of argon occur in nature – 36 18Ar, 38 18Ar, 40 18Ar. Calculate the average atomic mass of argon to two decimal p
likoan [24]

Answer: 3) 39.96 amu

Explanation:

Mass of isotope Ar- 36 = 35.97 amu

% abundance of isotope Ar- 36= 0.337% = \frac{0.337}{100}=3.37\times 10^{-3}

Mass of isotope Ar- 38 = 37.96 amu

% abundance of isotope 2 = 0.063 % = \frac{0.063}{100}=6.3\times 10^{-4}

Mass of isotope Ar- 40 = 39.96 amu

% abundance of isotope 2 = 99.600 % = \frac{99.600}{100}=0.996

Formula used for average atomic mass of an element :

\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})

A=\sum[(35.97\times 3.37\times 10^{-3})+(37.96\times 6.3\times 10^{-4})+(39.96\times 0.996)]

A=39.96amu

Therefore, the average atomic mass of argon is 39.96 amu

4 0
3 years ago
What do you mean by environment conservation?​
BARSIC [14]

Explanation:

Environment conservation is an umbrella term that defines anything we do to protect our planet and conserve its natural resources so that every living thing can have an improved quality of life. bolivianouft and 7 more users found this answer helpful.

3 0
3 years ago
Convert 678.92 cm into meters​
Anastaziya [24]

Answer:6.7892 meters

Explanation:

4 0
2 years ago
4. Energy can be conserved by -
mart [117]

Energy can be conserved by efficient energy use.

Answer: Option A

<u>Explanation:</u>

Energy can be transferred from one form to another, but it cannot be destroyed or created. So it can be conserved if efficiently used. Thus efficient usage of energy lead to conservation of energy. Due to conservation of energy, the forces can be renewable and non-renewable.

So, we should know how the input energy can be completely converted to another form of energy leading to efficient usage of energy without any loss. As if there is no loss, input energy will be equal to output energy leading to 100% efficiency.

4 0
3 years ago
Other questions:
  • A) Select the strongest acid:H2Te, GeH4, AsH3, H2S, SiH3
    7·1 answer
  • Question 1(Multiple Choice Worth 4 points)
    8·2 answers
  • The length of a copper wire is 1.6 centimeters (cm). What is the length of this wire in meters (m)?
    12·1 answer
  • If a gas is moved from a large container to a small container but its temperature and number of moles remain the same, wh
    5·2 answers
  • Please i need the answer for 18,19,20<br><br><br>Answer and I will give you brainiliest <br>​
    5·1 answer
  • Help please<br> How many grams in 7.57 moles of Calcium Nitrate (Ca(NO3)2)
    15·1 answer
  • Chemistry practice ​
    6·1 answer
  • I need a answer quick. PLEASE<br><br>What is the volume of 2.43 x 1023 molecules of N2 gas at STP?
    8·1 answer
  • Multiple choice:
    11·1 answer
  • A bottle containing a standard solution of KMnO4 is found to have brown stains on the inside. Why will this KMnO4 be of no furth
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!