All categories

2 years ago

The element chlorine has atomic no.17 and atomic mass 35. Calculate the no. of protons, neutrons and electrons.

Chemistry

2 answers:

sammy [17]2 years ago

5 0

Answer:

Protons = 17 Neutrons = 18 Electrons = 17

Explanation:

The number of protons and electrons are the the same number as the atomic number.

To get the number of neutrons, subtract the number of protons from the mass number.

35-17=18

Stella [2.4K]2 years ago

4 0

Answer:

Protons: 17

Neutrons: 18

Electrons: 17

Explanation:

To find the number of protons, you simply have to find the atomic number of the element.

To find the number of protons you have to subtract the atomic number from the atomic mass

To find electrons to add or subtract the charge that the element has. (In this case, it has no charge)

You might be interested in

What determines crystal size in minerals formed by lava or magma?

Burka [1]

Answer:

When magma cools, crystals form because the solution is super-saturated with respect to some minerals. If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large.

Explanation:

5 0

2 years ago

A chunk of tin weighing 18.5 grams and originally at 97.38 °C is dropped into an insulated cup containing 75.7 grams of water at

weqwewe [10]

Answer:

22.44°C will be the final temperature of the water.

Explanation:

Heat lost by tin will be equal to heat gained by the water

$-Q_1=Q_2$

Mass of tin = $m_1=18.5 g$

Specific heat capacity of tin = $c_1=0.21 J/g^oC$

Initial temperature of the tin = $T_1=97.38^oC$

Final temperature = $T_2$ =T

$Q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2=75.7 g$

Specific heat capacity of water= $c_2=4.184 J/g^oC$

Initial temperature of the water = $T_3=21.52^oC$

Final temperature of water = $T_2$ =T

$Q_2=m_2c_2\times (T-T_3)$

$-Q_1=Q_2$

$-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)$

On substituting all values:

$-(18.5 g\times 0.21 J/g^oC\times (T-97.38^oC))=75.7 g\times 4.184 J/g^oC\times (T-21.52 ^oC)$

we get, T = 22.44°C

22.44°C will be the final temperature of the water.

5 0

3 years ago

Use the ruler to determine the length of this object. Record your answer to the nearest tenth. The object is ____ long.

VLD [36.1K]

The object is 2.7 cm long

7 0

3 years ago

2. _____ is the distance and direction of an object’s change in position from the starting a. Speed b. Displacement c. Ve

Llana [10]

Displacement is the distance and direction of an object's change in position from the starting.
Hence option B is correct.

Hope this helps!

3 0

2 years ago

Balance the following equations: (c) H2(g)+I2(s)⟶HI(s)H2(g)+I2(s)⟶HI(s)

kenny6666 [7]

Answer: $H_2(g)+I_2(g)\rightarrow 2HI(s)$

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

Thus in the reactants, there are 2 atoms of hydrogen and 2 atoms of iodine .Thus there has to be 2 atoms of hydrogen and 2 atoms of iodine in the product as well. Thus a coefficient of 2 is placed in front of HI.

The balanced chemical reaction is:

$H_2(g)+I_2(g)\rightarrow 2HI(s)$

6 0

3 years ago

The element chlorine has atomic no.17 and atomic mass 35. Calculate the no. of protons, neutrons and electrons. ​

The element chlorine has atomic no.17 and atomic mass 35. Calculate the no. of protons, neutrons and electrons.