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enyata [817]
2 years ago
6

Hellowww..... =)What is atomic number ?..​

Physics
2 answers:
inysia [295]2 years ago
6 0
Atomic number is the number of protons that a certain atom has.
kipiarov [429]2 years ago
4 0

Answer:

The atomic number is the number of protons in an element

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Hii can someone please doo this! 50 pointss.
andrey2020 [161]

Answer:

The periodic table illustrate some of the elements from Hydrogen to Calcium

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3 years ago
The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorous and oxygen act together as on
S_A_V [24]

The question is incomplete, the complete question is;

The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorus and oxygen act together as one charged particle, which is connected to magnesium, the other charged particle. What does the 2 mean in the formula 5Mg3(PO4)2? A. There are two elements in magnesium phosphate. B. There are two molecules of magnesium phosphate. C. There are two magnesium ions in a molecule of magnesium phosphate. D. There are two phosphate ions in a molecule of magnesium phosphate.

Answer:

There are two phosphate ions in a molecule of magnesium phosphate.

Explanation:

The compound magnesium phosphate is an ionic compound. Ionic compounds always consists of two ions, a positive ion and a negative ion.

In this case, the positive ion is Mg^2+ while the negative ion is PO4^3-.

The subscript, 2 after the formula of the phosphate ion means that there are two phosphate ions in each formula unit of magnesium phosphate.

5 0
2 years ago
How to convert acceleration to velocity.
Nana76 [90]

You can't. Velocity and acceleration measure two different things, so their units are incompatible. It's like asking, "How many meters does this book weigh?"

Maybe you mean "find" acceleration using given velocities, or a velocity function?

4 0
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2. A bus drove 8 meters East, then turned to drive 8 meters North, then 2 meters
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Long question good luck:)

Explanation:

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Concave lenses have
Scilla [17]

Answer:

A. negative; virtual.

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A concave lens always forms a virtual erect and diminished image. The reason why is that the image is actually formed by the intersection of virtually extended refracted rays.

Hope this helps!

Please mark as brainliest if correct!

3 0
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