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elena55 [62]
3 years ago
14

The nucleus of the atom is held together by the attraction of the positively charged protons and the negatively charged electron

s. True False
Chemistry
1 answer:
7nadin3 [17]3 years ago
8 0
False.........................
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Charcoal found under a stone at Stonehenge, England, has a carbon-14 activity that is 0.60 that of new wood. How old is the char
kenny6666 [7]

Charcoal with a carbon-14 activity of 0.60 compared to new wood has less than 5,730 years.

<h3>What is a radioactive isotope?</h3>

A radioactive isotope is an element in nature that emit radioactivity in a given period of time (e.g., the half-life for C14 is equal to 5,730 years).

Radioactive dating is a technique to measure the age of an element by measuring its radioactive activity.

In conclusion, charcoal with a carbon-14 activity of 0.60 compared to new wood has less than 5,730 yr.

Learn more about radioactive dating here:

brainly.com/question/8831242

#SPJ1

5 0
1 year ago
Uranium has atomic number 92. Its most common isotope is 238U, but the form used in nuclear bombs and nuclear power plants is 23
Yakvenalex [24]

Explanation:

Atomic Number = Number of protons

Mass Number = Number of protons + Number of neutrons

Isotopes are simply atoms of an element with the same number of protons and different number of neutrons.

First Isotope -- 238U

Number of neutrons = Mass Number - Atomic Number

Number of neutrons =  238 - 92 = 146

Second Isotope -- 235U

Number of neutrons = Mass Number - Atomic Number

Number of neutrons =  235 - 92 = 143

3 0
3 years ago
Which of the following are good conductors
dimulka [17.4K]

Answer:

iron, graphite,NaCl solution etc are some examples of good conductor of electricity

5 0
3 years ago
Read 2 more answers
Many elements bond to carbon by exchanging electrons. true or false.
Sliva [168]
If a metal is bonded to carbon, they form ionic bonds. If a nonmetal forms a bond with carbon, they form covalent bond. Ionic bond requires metals to give away electrons to form cations and nonmetal to gain/accept electron to form anions. Covalent bond requires sharing of electrons between both elements. So if you meant exchange as in covalent bond, then no. Not many nonmetal elements form bonds with carbon as there are more metal elements in the periodic table.
8 0
3 years ago
Read 2 more answers
What force attracts any two pieces of matter in the universe?
Darya [45]
Hi,

The answer is gravity.
The bigger the object is the more are other smaller objects attracted to it. The opposite of gravity is dark energy which keeps objects apart and accelerates expansion of the universe.

Hope this helps.
r3t40
3 0
3 years ago
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