All categories

2 years ago

What does it mean to say that some elements are reactive and form ions easily whereas others do not?

Physics

1 answer:

butalik [34]2 years ago

4 0

Answer:

Some elements are reactive because the outermost energy levels of their atoms are only partially filled. Therefore, these atoms can easily gain or lose electrons to form ions. The atoms of nonreactive elements have filled outermost energy levels

Explanation:

hope this answers your ?

You might be interested in

2. Which metal ion produces the light with the highest energy? Na+ Ca+ K+ Ba2+

NeX [460]

"K+" is the one metal ion among the choices given in the question that produces the light with the highest energy. The correct option among all the options that are given in the question is the third option or the penultimate option. I hope that the answer has actually come to your help.

5 0

3 years ago

Two bulbs marked 200 W-250 V and 100 W-250 V are joined in

lozanna [386]

Answer:

P = 66.67 W

Explanation:

Joule Heating

It's the process by which the electric current passing through a conductor produces heat.

Also known as Joule's first law or the Joule–Lenz law, states that the power of heating generated by an electrical conductor (P) is proportional to the product of its resistance (R) and the square of the current (I).

It can be described by the equation that follows:

$P = I^2.R$

Also, we can calculate the voltage V with the formula of Ohm's law:

$V = I.R$

Combining both equations, power can be related to the voltage:

$\displaystyle P=\frac{V^2}{R}$

Given the power and the voltage, the resistance can be calculated by solving for R:

$\displaystyle R=\frac{V^2}{P}$

There are two bulbs marked P=200W V=250V and P=100 W V=250.

The first bulb has a resistance of:

$\displaystyle R_1=\frac{250^2}{200}$

$\displaystyle R_1=312.5\Omega$

The first bulb has a resistance of:

$\displaystyle R_2=\frac{250^2}{100}$

$\displaystyle R_1=625\Omega$

When connected in series, the total resistance is

$R = R_1 + R_2=312.5\Omega+625\Omega$

$R=937.5\Omega$

The total power consumed when connecting them to a V=250 V supply is:

$\displaystyle P=\frac{250^2}{937.5}$

P = 66.67 W

4 0

3 years ago

Large bodies of water help to keep nearby climates from being too hot or too cold because they

Ludmilka [50]

Large bodies of water help to keep nearby climates from being too hot or too cold because they absorb heat in the summer and slowly release that heat in the winter.

So your answer is absorb

7 0

4 years ago

A nail is hit with a hammer. Which type of contact force has been applied?

Mademuasel [1]

Applied force I think.

5 0

3 years ago

Read 2 more answers

12. A runner at the start of a race generates 250 W of power as he accelerates to 5 m/s. If the runner has a mass of

Margaret [11]

1/2 m/s2
30 Na

I hope this helps!

4 0

3 years ago