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andriy [413]
3 years ago
14

3.

Chemistry
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

They are made up of elements.

Explanation:

An atom is the smallest particle of matter that still retains the property of the element.

Two or more atoms combine to form elements or compounds. Elements are formed by two or more similar atoms, while compounds are formed by two or more different elements.

Atoms are made up of subatomic particles, protons, electrons and neutrons. Electrons are negatively charged, protons are positively charged while neutrons have no charge.

I hope this help! :)

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The nucleus of a lead atom has a charge of 82 protons what are the drection and magnitude
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PLEASE HELP ME WITH ATOMS AND DALTON I BEG YOU
rosijanka [135]

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.

Dalton based his theory on the law of conservation of mass and the law of constant composition.

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6 0
3 years ago
The atomic and mass numbers for four different atoms are given below. Which two are isotopes of the same element?
Dmitrij [34]
The correct option is B AND C.
An isotope is defined as two or more forms of the same element which contain equal number of protons but different number of neutrons in their nuclei, hence they differ in relative atomic mass but not in chemical properties.
Thus, isotopes has the same number of protons but differ in number of neutrons. Due to this fact, isotopes always have the same atomic number but different mass number. You will notice that the atomic number given for elements B and C are the same [101].
4 0
4 years ago
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