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Biblioteka

Ch. 3 Review

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Posljednje ažuriranje over 3 years ago
6
Obavezno
4
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3
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3
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2
Pitanje 1
1.

Complete the following statments about subatomic particles.

1. An electron has a charge, is located outside the , and has a mass of amu.

2. A proton has a charge, is located in the nucleus , and has mass of amu.

3. A neutron has a charge, is located in the , and has a mass of amu.

Pitanje 2
2.

Match the decription to the result below

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Changing number of electrons

arrow_right_alt

new element

Changing number of protons

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new isotope

Changing number of neutrons

arrow_right_alt

new ion

Pitanje 3
3.

In a neutral atom of magnesium-25, there are protons, electrons, and neutrons. (use whole numbers only)

Pitanje 4
4.

There are multiple isotopes of Zinc. The most stable isotope is Zinc- . It has protons, neutrons, and an atomic mass of . (use whole numbers only)

Pitanje 5
5.

Put the following in order of increasing number of protons.

  1. C

  2. F

  3. Na

  4. Zr

Pitanje 6
6.

In an isotope symbol, the top number is the number and the bottom number is the number. for example, for carbon-14, the top number would be and the bottom number would be .

Drugi mogući odgovor:
atomic
14
12
6
mass
10