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3 years ago

Select the correct answer. Which atom or lon is the largest?

Chemistry

2 answers:

icang [17]3 years ago

8 0

Answer:urenium

Explanation: because his atomic number is 235

Bess [88]3 years ago

6 0

Answer:

We know when the no of protons (+ charge) is greater than the no of electrons (- charge), the nucleus pulls the electrons with greater force, hence making the size smaller. Clearly, the cations are smaller than the atoms, this largest atom/ion will be Ca.

K has 19 protons, 19 electrons

K+ has 19 protons, 18 electrons

Ca has 20 protons, 20 electrons

Ca2+ has 20 protons, 18 electrons

Li has 3 protons, 3 electrons

Clearly, the cations are smaller than the atoms, this largest atom/ion will be Ca.

Explanation:

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Which of the following correctly represents the transmutation in which a curium-242 nucleus is bombarded with an alpha particle

Alekssandra [29.7K]

<u>Answer:</u> The chemical equation is written below.

<u>Explanation:</u>

Transmutation is defined as the process in which one chemical isotope gets converted to another chemical isotope. The number of protons or neutrons in the isotope gets changed.

The chemical equation for the reaction of curium-242 nucleus with alpha particle (helium nucleus) follows:

$_{96}^{242}\textrm{Cm}+_4^2\textrm{He}\rightarrow _{98}^{245}\textrm{Cf}+_0^1\textrm{n}$

The product formed in the nuclear reaction are californium-245 nucleus and a neutron particle.

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3 years ago

What scientific instrument is sensitive enough to detect a planet transiting a star?

Stolb23 [73]

The correct scientific instrument is telescope.

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3 years ago

Determine the empirical formula. a 3.880g sample contains 0.691g of magnesium , 1.84 g of sulfur , and 1.365 g of oxygen .

Aliun [14]

Answer:

Mg S2 O3

Explanation:

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1.84 g of S is .5739 mole

1.365 g of O is .8531 mole you can see the ratio is ~ 1 :2 :3

Mg S2 O3

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2 years ago

Which tool is most suitable for a chemist to measure the mass of a liquid

I am Lyosha [343]

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3 years ago

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xz_007 [3.2K]

Answer:

protons and neutrons

Explanation:

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