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3 years ago

What can you tell me about the charge signs on the spheres

1 answer:

6 0

<span>A similar thing occurred with the circles as did with the electroscope. When we initially brought the charged pole close to, the bar pulled in the circle since it was of polarization. At that point, once the bar touched the circle, the pole repulsed the circle. This is on the grounds that once the pole and circle touched, the electrons exchanged thus did the protons, consequently leaving the circle with a positive net charge. The nearer the bar is to the circle the more it repulsed, however, it didn't influence the charge of the circle once the circle was touched by the pole.</span>

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Describe how PERIODS and GROUPS are set up on the Periodic Table of Elements.

Oliga [24]

Answer:

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

(Love your pfp btw)

Explanation:

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3 years ago

2 days Claire went missing, the body of a young girl was found in an abandoned building. There were 2 blowfly larvae on the body

KengaRu [80]

Answer:

Yes it is possible that the body might be Claire's

Explanation:

It is possible because the scenario says that it had similar appearances that Claire had

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3 years ago

Pure gold is defined as having 24 carats. When mixed in an alloy, the carats of gold are given as a percentage of this value. Fo

kap26 [50]

Answer:

18 Carats because of 75% Purity...

Explanation:

Red Gold Jewelry always contains a mixing of 25% copper by mass to make it durable and strong. That according to the simple parallel ratio rule, gives us a purity level of gold to be exactly 18 Carats. In other words the Red Gold is 75% pure...

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3 years ago

In which state does the precipitate exist in a precipitation reaction?

Readme [11.4K]

Answer:

Explanation:

Precipitate means something is forming. Usually referring to insoluble salts.

6 0

3 years ago

Which atom in the ground state requires the least amount of energy to remove its valence electron?(1) lithium atom (2) potassium

Fudgin [204]

<h3>Answer:</h3>

Rubidium (Rb)

<h3>Explanation:</h3>

Ionization Energy is defined as, "the minimum energy required to knock out or remove the valence electron from valence shell of an atom".

<h3>Trends in Periodic table:</h3>

Along Periods:

Ionization Energy increases from left to right along the periods because moving from left to right in the same period the number of protons (atomic number) increases but the number of shells remain constant hence, resulting in strong nuclear interactions and electrons are more attracted to nucleus hence, requires more energy to knock them out.

Along Groups:

Ionization energy decreases from top to bottom along the groups because the number of shells increases and the distance between nucleus and valence electrons also increases along with increase in shielding effect provided by core electrons. Therefore, the valence electrons experience less nuclear attraction and are easily removed.

<h3>Conclusion:</h3>

Given elements belong to same group hence, Rubidium present at the bottom of remaining elements will have least ionization energy due to facts explained in trends of groups above.

5 0

3 years ago