True or false
Every atom of the same
element has the same
atomic number.

Answers

Answer 1

Answer:

Answer: True

Explanation: Every atom of the same element has the same atomic number of number of protons in its core. This is why chemists say that an atom is defined by its atomic number of the number of protons.

Unlike neutrons and electrons, you can't change protons. You can change the number of neutrons and it will still be the same element, but one is going to be a little bit heavier or a little bit lighter than another.

In addition, you can change electrons which creates

ions or charged atoms.

However, you can't change the protons.

For example, hydrogen has 1 proton in its nucleus no matter what and helium has 2 protons in its nucleus no matter what and so on.

Answer 2

Answer:

Final answer:

The statement is true. Every atom of the same element has the same atomic number, which is the number of protons in an atom's nucleus. This is a unique value defining an element.

Explanation:

The statement 'Every atom of the same element has the same atomic number' is True. The atomic number of an element is unique to that element and determines its position on the Periodic Table. It represents the number of protons in an atom's nucleus and is the fundamental property that defines an element. All atoms of the same element will have the same number of protons, and therefore the same atomic number.

Learn more about Atomic Number here:

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PLS ANSWER BEFORE MIDNIGHT 20 POINTS

Prepare a 0.50 L of a 1.0 M solution of potassium sulfate. Determine the amount of potassium sulfate needed in correct significant figures.A) 68 g
B) 87 g
C) 270 g
D) 349 g
I can't figure out the answer.

Answers

Answer:

B) 87g

Explanation:

Usatestprep said it

PLEASE HELP ME 32 PONITS FOR BEST ANSWER!!!!!!!!!!!!!!!!!!!!15.What type of energy is being used in the following example?
swinging back and forth.

Mechanical
Radiant (light)
Thermal (heat)
All of the above
6.What type of energy is being used in the following example?
They sat on the swings for a while, and also talked.

Electrical
Radiant (light)
Sound
Chemical

7.What type of energy is being used in the following example?
After a while, they decided to listen to some music on their portable radio.

Sound
Electrical
Chemical
All of the above
8.What type of energy is being used in the following example?
Soon realized that their batteries were low.

Mechanical
Radiant (light)
Thermal (heat)
Chemical

9.What type of energy is being used in the following example?
They saw lightning in the distance.

Electrical
Gravitational
Thermal (heat)
Chemical

10.What type of energy is being used in the following example?
They rode home and listened to the stereo at Jamie's house.

Radiant (light)
Sound
Thermal (heat)
Chemical

Answers

Mechanical.
Sound
Sound, Electrical.
Chemical
Electrical
Sound.

mechanical
sound
sound, electrical
8?
radiant
sound

What is the opposite of ductile and malleable?

PLEASE HELP!!!! I NEED THIS TONIGHT!!!

Answers

ductility = brittleness
malleability = immalleability, rigidity

Opposite of malleable is rigidity and opposite of ductile is brittleness.

I have a balloon that can hold 100 liters of air. If I blow up this balloon with 3 miles of gas at a pressure of 1 atmosphere, what is the temperature of the balloon

Answers

Answer:

Explanation:

Because if u ask me it has to be

Describe how is the atomic mass of an atom is calculated.URGENT, NEED TO KNOW NOW!!!

Answers

If it's your first encounter with chemistry, your instructor will want you to learn how to use the periodic table to find the atomic mass (atomic weight) of an element. This number usually is given below an element's symbol. Look for the decimal number, which is a weighted average of the atomic masses of all the natural isotopes of an element.

What is the definition of a Lewis base?a substance that donates a proton
a substance that donates electrons to form a covalent bond
a substance that accepts electrons to form a covalent bond
a substance that when dissolved in water increases hydrogen ion concentration

Answers

The definition of a Lewis base is: C. a substance that accepts electrons to form a covalent bond.

What is a Lewis base?

A Lewis base can be defined as a specie of an ionic or chemical compound that contains an empty orbital which allows it to donate an electron pair (two or more electrons) to form a covalent bond.

This ultimately implies that, a Lewis base is a chemical substance that accepts an electron pair (two or more electrons) to form a covalent bond.