All categories

4 years ago

Which statement best describes the electrons in this illustration?

Chemistry

1 answer:

ololo11 [35]4 years ago

5 0

Answer:

Statement 3 is correct. the electrons are negatively charged particles located outside the nucleus

Explanation:

Step 1: Data

Electrons = Electrons are subatomic particles.

⇒They (usually) are negative charged.

⇒They are situated outside the nucleus.

⇒They are much smaller than the nucleus of the atom. (neutrons and protons)

Protons

⇒They (usually) are positive charged.

⇒They are situated inside the nucleus.

Neutrons

⇒They (usually)do not have a charge = neutral

⇒They are situated inside the nucleus.

Step 2:

1. the electrons are positively charged particles located outside the nucleus

⇒ False. Electrons are negative charged

2. the electrons are positively charged particles located inside the nucleus

⇒ False Electrons are negative charged and outside the nucleus

3. the electrons are negatively charged particles located outside the nucleus

⇒ This statement is TRUE

4. the electrons are negatively charged particles located inside the nucleus

⇒False. Electrons are located outside the nucleus

Statement 3 is correct. the electrons are negatively charged particles located outside the nucleus

You might be interested in

Which of these is a compound A sugar B window cleaner C nitrogen D silver

Aleksandr [31]

I'm pretty sure (C) Nitrogen is a compound.

5 0

3 years ago

Read 2 more answers

How does a change in the temperature of the boiling point indicate that a chemical reaction has occurred?

Elodia [21]

Answer:

A change in temperature is characteristic of a chemical change. ... If temperature increases, as it does in most reactions, a chemical change is likely to be occurring. This is different from the physical temperature change. During a physical temperature change, one substance, such as water is being heated.

4 0

3 years ago

Read 2 more answers

What is the final temperature when 150.0 g of water at 90.0 °c is added to 100.0 g of water at 30.0 OC? Note that C, of water ca

levacccp [35]

Answer : The final temperature is, $337.8K$

Explanation :

$Q_{absorbed}=Q_{released}$

As we know that,

$Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})$

$m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]$ .................(1)

where,

q = heat absorbed or released

$m_1$ = mass of water at $90^oC$ = 150 g

$m_2$ = mass of water at $30^oC$ = 100 g

$T_{final}$ = final temperature = ?

$T_1$ = temperature of lead = $90^oC=273+90=363K$

$T_2$ = temperature of water = $30^oC=273+30=303K$

$c_1\text{ and }c_2$ = same (for water)

Now put all the given values in equation (1), we get

$150\times (T_{final}-363)=-[100\times (T_{final}-303)]$

$T_{final}=337.8K$

Therefore, the final temperature is, $337.8K$

8 0

4 years ago

Read 2 more answers

Give four examples illustrating each of the following terms. a. homogeneous mixture b. heterogeneous mixture c. compound e. phys

zzz [600]

1. homogenous: sugar solution

2. heterogeneous: sand solution

3. compound: water

4. physical change: ice melting

5. element: hydrogen

6. chemical change: burning fire

6 0

3 years ago

WILL MARK BRAINLIEST<br> How many electrons can be held in the energy level n = 4?

anyanavicka [17]

Answer:

Explanation:

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.

4 0

4 years ago