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Fudgin [204]
3 years ago
7

In a sample of pure copper, all atoms have atomic numbers which are

Chemistry
2 answers:
Bumek [7]3 years ago
8 0

Answer:

All atoms have same atomic number because number of electrons in all atoms are same.

Explanation

Every atom consist of nucleus or a positive center. The protons and neutrons are present with in the nucleus while electrons are present out side the nucleus. All these three subatomic particles construct an atom. The number of protons or number of electrons are the atomic number of an atom while the number of protons and number of neutrons are the mass number of an atom. A neutral atom have equal number of protons and electrons. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other.

For example:

Atomic number of copper is 29 it have 29 electrons and 29 protons.

While its atomic mass is 63.546 and have 35 neutrons.

alisha [4.7K]3 years ago
4 0

Explanation:

Atomic number of an atom is actually the sum of total number of protons present in it.  And, atomic mass is the sum of total number of protons and neutrons present in an atom.

And, when an atom is neutral in nature then the number number of electrons present in it is equal to the number of protons in it.

For example, atomic number of copper is 29 and atomic mass of copper is 63.

This means that a sample of pure copper will have all atoms has an atomic number 29, that is, number of protons is 29.

And, number of electrons is also 29 and number of neutrons is 35.

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Andreyy89

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Hope this helps! :)

8 0
3 years ago
What prediction can i make about malaria
Sunny_sXe [5.5K]

Answer:

A disease caused by a plasmodium parasite, transmitted by the bite of infected mosquitoes.

The severity of malaria varies based on the species of plasmodium.

Symptoms are chills, fever, and sweating, usually occurring a few weeks after being bitten.

People traveling to areas where malaria is common typically take protective drugs before, during, and after their trip. Treatment includes antimalarial drugs.

Explanation:

4 0
3 years ago
The element in Group 14 Period 4 has how many neutrons and is it a metal, nonmetal, metalloid or noble gas.
monitta

Number of neutrons=41, and it is metalloid

<h3>Further explanation</h3>

Group 14⇒valence electron = 4(ns²np²)

Period 4⇒n=4

So electron configuration of the element :

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p² = 32 electron=atomic number

The element with atomic number 32, which is in period 4 and group 14 is Ge-Germanium

There are seven elements that can be classified as metalloids, namely boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), and polonium (Po).

While the mass number: 73

So the number of neutrons = mass number-atomic number

\tt 73-32=41

8 0
3 years ago
What force in liquids causes surface tension? covalent forces intermolecular forces intramolecular forces ionic forces.
artcher [175]

Answer:

Intermolecular forces

Explanation:

Intermolecular forces cause surface tension.

Source info:
"Surface tension, capillary action, and viscosity are unique properties of liquids that depend on the nature of intermolecular interactions."

(11.S: Liquids and Intermolecular Forces (Summary)https://chem.libretexts.org )

7 0
3 years ago
Picture a neutral P atom. This neutral atom will have
aleksandr82 [10.1K]

Answer:

It will have 5 valence electrons as its in group 5.

The atom will gain as its closer to the full configuration 8.

The charge will be 3- as it will gain 3 electrons.

3 0
2 years ago
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