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Wittaler [7]
3 years ago
13

Which statement accurately describes the charge of the nucleus of an atom? A. The nucleus can be either positively charged or ne

utral. B. The nucleus never has an electrical charge. C. The nucleus always has a positive charge. D. The charge of a nucleus can change from positive to negative.
Chemistry
2 answers:
BARSIC [14]3 years ago
3 0
<span>A. The nucleus can be either positively charged or neutral.

The nucleus is located at the center of an atom wherein it contains the protons and the neutrons.</span>
kupik [55]3 years ago
3 0

Answer: Option (A) is the correct answer.

Explanation:

An atom contains three sub-atomic particles namely protons, neutrons and electrons.

The nucleus of an atom contains protons and neutrons only. Whereas electrons revolve around the nucleus. Protons are positively charged, neutrons have no charge and electrons are negatively charged.

When an atom is neutral then number of protons equal the number of electrons. Hence, the atom becomes neutral as positive charge is equal to negative charge and thus gets cancelled.

Therefore, a nucleus can be either positively charged or neutral.

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iris [78.8K]

Answer:

A

Explanation:

They will collect samples from different sites and write their observations

8 0
3 years ago
Brianliest for whoever gets this right with step by step method
Sedaia [141]
The Mr is the mass numbers of each element added up so…. Fe = 56, O=16, H=1 … now add these up with the number of each element -> there’s 1 Fe, and 3 Os and 3 Hs as they are in brackets with a 3 outside-> (56+16+16+16+1+1+1=107) … your answer is 107
8 0
3 years ago
A microwave can have a frequency of 3.8 X 1010Hz. How much energy does this microwave give off in joules?
Marina86 [1]

Answer:

2.52 x 10^{-23} J

Explanation:

The energy given off by the microwave can be determined by the application of Planck's energy formula:

E = hf

where: E is the required energy, h is Planck's constant (6.626 x 10^{-34}m^{2}Kg/s), and f is the frequency (3.8 x 10^{10} Hz).

So that;

E = 6.626 x 10^{-34} x 3.8 x 10^{10}

  = 2.51788 x 10^{-23}

Therefore, the energy released by the wave is 2.52 x 10^{-23} J.

3 0
3 years ago
As you move down the periodic table atoms get bigger. This is because.
Elden [556K]
Because going down a column you are jumping up to the next higher main energy level (n) and each energy level is further out from the nucleus
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2 years ago
What is the purpose of a catalyst?
Artyom0805 [142]
Answer: A. To change the potential energy of the reactants.

Explanation:
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5 0
3 years ago
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