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2 years ago

For metalloids on the periodic table, how do the group number and the period number relate?

Physics

2 answers:

kotegsom [21]2 years ago

8 0

Answer : The correct option is, (1) The lower the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.

Explanation :

Metalloids : These are the elements which shows both the property of metals and non-metals that means the metalloids are present in between the metals and non- metals elements.

Boron, silicon, germanium, arsenic, antimony, tellurium and polonium are the metalloids.

In the periodic table, the metals are present on the left side, non-metals are present on the right side and the metalloids are present between the metals and non-metals.

The relation between the group number and the period number is :

The lower the group number, the lower the period numbers. So, the metalloids are found in a diagonal moving down from left to right.

Hence, the correct option is, (1)

The periodic table is also shown below.

lapo4ka [179]2 years ago

3 0

Im guessing it's (a) since the numbers go in chronological order and you read the periodic table left to right

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2 years ago

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A student lifts a 50 pound (lb) ball 4 feet (ft) in 5 seconds (s). How many joules of work has the student completed?

Elis [28]

   Work = (weight) x (distance)

Work = (50 lb) x (1 kg / 2.20462 lb) x (9.81 newton/kg)

   x (4 feet) x (1 meter / 3.28084 feet)

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   =    271.3 joules .

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The easy way:

   Work = (weight) x (distance)

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Look up (online) how many joules there are in 1 foot-pound.

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2 years ago

Resistance of rod is 1 ohm. It is bent in the form of square. The resistance across adjoint corners is.

nirvana33 [79]

Answer: The answer to the question is 0.25 ohms

Explanation:

R = u x/A .......1

where u is chosen as the resistivity of

the rod, A is area of the rod and x is

chosen as the length of the rod.

Let R* be the resistance of the

lengths of the rod across the adjoints

Then R* = u1/4.......2

Comparing equation 1 and 2

R* = 1/4

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2 years ago

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A vertical wire carries a current straight up in a region where the magnetic field vector points due north. What is the directio

Elanso [62]

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The direction of the resulting force on this current is due east.

Explanation:

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