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lesantik [10]
2 years ago
5

The atomic number of beryllium (Be) is 4, and the atomic number of barium (Ba) is 56. Which comparison is best supported by this

information?
A: They are in the same group because they have similar atomic masses, but they are in different periods because they have different chemical properties.
B: They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.
C: They are in the same group because their atomic numbers are each multiples of four, but they are in different periods because they have different chemical properties.
D: They are in the same group because they have similar atomic masses, but they are in different periods because they have very different atomic numbers.
Physics
2 answers:
Thepotemich [5.8K]2 years ago
6 0

The answer is:

B)They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.

The explanation:

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties.

A period is a horizontal row of elements on the periodic table. For example, the elements sodium ( Na ) and magnesium ( Mg ) are both in period 3. The elements astatine ( At ) and radon ( Rn ) are both in period 6.

AnnZ [28]2 years ago
5 0

Answer:

(B)

Explanation:

jus took the test on edg

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2 years ago
What voltage is required to move 6A through 20?<br><br>​
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120V

Explanation:

Given parameters:

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Unknown:

Voltage = ?

Solution:

According to ohms law;

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A spherical drop of water carrying a charge of 30 pC has a potential of 500 V at its surface (with V 0 at infinity). (a) What is
Delicious77 [7]

Answer:

A. 5.4 * 10^(-4) m

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2 years ago
Which statement is not a good practice when working inside a computer case?
lozanna [386]

Answer:

a. be sure to hold expansion cards by the edge connectors

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