All categories

2 years ago

I will mark brainliest

Chemistry

1 answer:

butalik [34]2 years ago

5 0

Answer:

A. 11

Explanation:

atoms are made of three types of sub atomic particles - protons, neutrons and electrons

Protons are positively charged, electrons are negatively charged and neutrons are neutral.

Protons and neutrons are located inside the nucleus and electrons orbit around the nucleus in energy shells.

Atoms make up an element and atoms are neutral charged with an equal number of protons and electrons. Neutral atom of sodium would therefore have an equal number of positive charges and negative charges.

Since Na has 11 protons, for it to be neutral it would have 11 electrons

You might be interested in

Is cotton yarn a natural resource?

Natalija [7]

Yes, because cotton is a plant and then the cotton is then made into a ball of yarn.

8 0

3 years ago

What is a neutron and what charge does it have

Gnoma [55]

It’s a polyatomic and it has a negative charge. It’s located in the nucleus of the atom, along with the protons.

5 0

3 years ago

Read 2 more answers

Round 1532.2364 to 3 significant figures.

mote1985 [20]

Answer:

It would be 1530

7 0

3 years ago

One isotope of oxygen differs from another isotope of oxygen in *

Reptile [31]

Each isotope of Oxygen has a different number of neutrons

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Atomic mass is the average atomic mass of all its isotopes

Isotopes are atoms has the same number of protons but has a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

Some of the isotopes of oxygen are:

$\tt _8^{16}O,_8^{17}O,_8^{18}O$

Each isotope has 8 protons and 8 electrons but has a different number of neutrons

For O-16: number of neutrons = 16-8 = 8

For O-17: number of neutrons = 17-8 = 9

For O-18: number of neutrons = 18-8 = 10

4 0

2 years ago

HELP ASAP PLEASE!!!

Dmitry [639]

Answer:

A. Electrolyte

Explanation:

Concentrated sulfuric acid has a density of 1.84 g/millimeter. When you dilute this with water to 5.20 M, you then have a density of 1.30 g/millimeter, which then can be used as a lead storage for batteries in automobiles. (Got help to answer this at Www.wyzant.com

3 0

3 years ago