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Ne4ueva [31]
3 years ago
5

Consider five atoms from the second period : lithium , beryllium , boron , carbon , and nitrogen , which of these elements has t

he lowest electronegatity
Physics
1 answer:
kap26 [50]3 years ago
6 0

Answer:

Lithium has the lowest electronegativity.

Explanation:

Electronegativity measures the tendency of an atom to attract the bonding pair of electrons. As we move left to right in a period, the number of shell remains same but the number of electron increases(negative charge increases. Hence, electronegativity also increases.

As Lithium is the left most element in this period. It has the lowest electronegativity value which is equal to 0.98.

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Why is acceleration of an object moving at a constant velocity always zero?
k0ka [10]

Answer:

If an object is moving with a constant velocity, then by definition it has zero acceleration. So there is no net force acting on the object. The total work done on the object is thus 0 (that's not to say that there isn't work done by individual forces on the object, but the sum is 0 ).

Explanation:

In the middle, when the object was changing position at a constant velocity, the acceleration was 0. This is because the object is no longer changing its velocity and is moving at a constant rate.

8 0
2 years ago
In a horse cart system when would there be the smallest amount of acceleration
Assoli18 [71]

Answer:

well... when the horse stops/rests, or if it is blocked by a surface or anything of solid background.

Explanation:

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3 years ago
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AleksandrR [38]
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Isotopes are atoms of a chemical element whose nucleus has the same atomic number, Z, but different atomic mass, A. The atomic number corresponds to the number of protons in the atom, therefore the isotopes of an element contain the same number of protons and electrons (atoms have to be neutral particles). The difference in atomic masses arises from the difference in the number of neutrons in the atomic nucleus.
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5 0
3 years ago
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Foraging bees often move in straight lines away from and toward their hives. Suppose a bee starts at its hive and flies 500 m du
Ainat [17]

Answer:

The distance of the bee from the hive is 740 m.

Explanation:

Given that,

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430 m in negative direction

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We need to calculate the net distance

Using formula of distance

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Hence, The distance of the bee from the hive is 740 m.

7 0
3 years ago
Leonard designed a parallel circuit to light two lightbulbs. But his circuit doesn't work. Which two items in the circuit must b
olya-2409 [2.1K]
The switch and the first lightbulb
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3 years ago
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