In Dimitri Mendeleev\'s periodic table, elements in the same vertical group have

Question

In Dimitri Mendeleev's periodic table, elements in the same vertical group have _____.

Select one:

a. similar atomic masses and atomic numbers

b. similar chemical and physical properties

c. the same number of electronic orbitals

d. the same number of protons and electrons

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The number of protons in the nucleus is known as the _____.

Select one:

a. atomic number

b. atomic mass

c. atomic mass unit

d. atomic nucleus

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Isotopes have different masses because they have different numbers of _____.

Select one:

a. neutrons

b. protons

c. electrons

d. orbitals

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The electrons involved in chemical bonding are generally found _____.

Select one:

a. inside the nucleus

b. closest to the nucleus

c. farthest from the nucleus

d. in the lowest energy level

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In BOTH ionic and covalent bonds, the resulting compound is stabilized because _____.

Select one:

a. its outer electron orbital is full

b. its inner electron orbital is full

c. one atoms transfers atoms to another

d. each atom shares electrons with the other

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The modern periodic table that we use today organizes elements based on increasing ______

Select one:

a. atomic mass

b. atomic number

c. atomic isotopes

d. atomic mass units

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Typically, an atom of an element in Period 4, Group 2 of the periodic table has electrons in how many energy levels?

Select one:

a. one

b. two

c. three

d. four

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Fluorine, a member of Group 17, has an atomic number of 9. How many valence electrons does it typically contain?

Select one:

a. 2

b. 7

c. 9

d. 17

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Alkali metals have a full outer energy level.

Select one:

True

False

Explanation / Answer

1. B

2. atomic number

3. neutrons

4. C

5. A

6. atomic number

7. four

8. seven

9. false

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