Which term describes the number of protons in one atom of an element

Physics

2 answers:

anyanavicka [17]4 years ago

6 0

Atomic Number would be what you are looking for

Rufina [12.5K]4 years ago

6 0

Answer:

Atomic number

Explanation:

The number of protons in an atom is equal to the atomic number of the atom.

The mass number of an element is defined as the sum of number of protons and neutrons.

The atomic number of an element is defined as the number of protons in the nucleus of the atom.

The atomic number is generally represented by letter Z.

The mass number is generally represented by the letter A.

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A body cycles continously through a distance of 10km in 5 mins. calculate its average speed

stira [4]

Answer:

distance=10km=10*1000=10000m

time=5min=5*60=300sec

average speed=distance/time

= 10000/300=33.33m/s

Explanation:

3 0

3 years ago

Use the graph of velocity versus time for an object to answer the question.

Pavel [41]

T<u>he statement which fairly compares segment 2 and segment 3 </u>is These represent equal periods of time, but the force during segment 2 is different than the force during segment 3.

Since segment 2 starts at t = 60 s and ends at t = 150 s, the time interval is Δt = 150 - 60 = 90 s.

Also, segment 3 starts at t = 150 s and ends at t = 240 s, the time interval is Δt = 240 - 150 = 90 s.

So, their time periods are the equal.

We notice that segment 2 is less steep than segment 3 this implies that the acceleration in each segment is different, since the acceleration is the slope of the graph.

Since force is determined by acceleration, this implies that the force on segment 2 is different form the force acting in segment 3.

So, we have equal time periods but different forces.

So, <u>the statement which fairly compares segment 2 and segment 3 </u>is These represent equal periods of time, but the force during segment 2 is different than the force during segment 3.

Learn more about velocity-time graph here:

brainly.com/question/24788847

8 0

3 years ago

A mole is defined as the number of atoms in an exact mass of which isotope?

alisha [4.7K]

Answer:

Isotope of carbon-12.

Explanation:

The MOLE is a unit of measurement of the amount of a pure substance which contains exactly the same number of chemical units which could be (Atoms, molecules etc.) posses atoms in exactly $12$ grams of isotope of carbon-12 (i.e., $6.022\times 10^{23}$ ).

So, The mole is the Notation used for an amount $6.022\times 10^{23}$ as same the 12 number is used for dozen for making count of Bananas and many more.

The $6.022\times 10^{23}$ is known as the fundamental constant names Avogadro's number ( $N_{A}$ ), It is in the honor of Italian scientist Amedeo Avogadro.