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natali 33 [55]
3 years ago
12

A chemical element is a pure substance that consists entirely of one type of what

Chemistry
1 answer:
Alexxandr [17]3 years ago
3 0

A chemical element is a pure substance that consists entirely of one type of atom. Atoms of any element should have same number of protons but they can have different number of neutrons.  

Elements are the simplest substances that can not be broken down by using the chemical reactions these can be changed into other elements using nuclear methods.

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An isotope, x, of a particular element has an atomic number of 16 and a mass number of 34. therefore: select one:
never [62]
Number protons is what determines the element.
16 protons determines that the substance is sulphur.

The number of neutrons can vary according to the isotope.  The mass number is the total count of neutrons and protons, so sulphur with a mass number of 34 has 34-16=18 neutrons.

32.065 is the weighted average of the atomic weights of different isotopes, so does not apply to a single isotope.
8 0
3 years ago
Use the given half reactions to "construct" an electrolytic cell. Zn^2+ + 2 e^--------->Zn E°cell = -0.76 V Cu^2+ + 2 e^-----
Neko [114]

Answer:

See explanation and image attached

Explanation:

The standard cell potential at 298 K is given by;

E°cathode - E°anode

Hence;

E°cell = 0.34 V - (-0.76 V)

E°cell = 0.34 V + 0.76 V

E°cell = 1.1 V

To reduce Zn^2+ to Zn then Zn must be the cathode, hence;

E°cell = (-0.76 V) - 0.34 V

E°cell = -1.1 V

5 0
3 years ago
What atom has 48 neutrons,and 32 protons
Mekhanik [1.2K]
Germanium as it has 32 protons
8 0
4 years ago
Read 2 more answers
Does neon have a larger atomic radius than argon
Lera25 [3.4K]

Answer:

No

Explanation:

Argon has a larger atomic radius

6 0
3 years ago
Which produces wave particles that move and displace one another? A) a radio B) a guitar C) a light bulb D) a microwave oven
Semmy [17]
The answer is B. A guitar generally produces sound waves that propagate when the strings are strummed. The strings are displaced through the vibrations caused by contact of the hand and the guitar. You will also notice the vibrations by looking closely to the string. Wave particles continuously collide with each other to make a sustaining or prolonging sound.
8 0
3 years ago
Read 2 more answers
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