All categories

3 years ago

Look at the periodic table which statement about the elements on the periodic table is true

Physics

1 answer:

IRINA_888 [86]3 years ago

8 0

Answer: B

Explanation:

The reactivity of alkaline metal ( example group one ) increases down the group because of the increase in atomic mass from the top to the bottom of the group. As the mass increases, the force between the nucleus and the valence electron gets weaker and the atom will easily give up the electron as a result of this which eventually increases its reactivity.

The reactivity of halogens decreases as atomic mass increases. Therefore, option B is the correct answer.

You might be interested in

When a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude f = ax, where a is a constant. th

Veseljchak [2.6K]

Given:
F = ax
where
x = distance by which the rubber band is stretched
a = constant

The work done in stretching the rubber band from x = 0 to x = L is
$W=\int_{0}^{L} Fdx = \int_{0}^{L}ax \, dx = \frac{a}{2} [x^{2} ]_{0}^{L} = \frac{aL^{2}}{2}$

Answer: $\frac{aL^{2}}{2}$

4 0

4 years ago

Two cars moving A and B moving with velocity of 12m/s and 8 m/s respectively in same direction. Find the relative velocity with

In-s [12.5K]

Answer:

Explanation:

7 0

3 years ago

True or false

Readme [11.4K]

Answer:

true

Explanation:

I believe the answer i chose because the earths atmosphere is mostly made up of different things that causes the earth to interact with human life and also interacts with what's in the atmosphere like energy oxygen carbon dioxide and all the stuff like that i hope its right.

6 0

3 years ago

What is your weight on Venus, assuming that the acceleration due to gravity on Venus is 8.875 m/s^2 and your mass is 50 kg.

Volgvan

Answer:

Weight on Venus = 443.75 N

Explanation:

Weight of a body is the product of mass and acceleration due to gravity.

So we have

Weight = Mass x Acceleration due to gravity

W = mg

Mass, m = 50 kg

Acceleration due to gravity, g = 8.875 m/s²

W = 50 x 8.875 = 443.75 N

Weight on Venus = 443.75 N

3 0

3 years ago

Read 2 more answers

A cannonball is launched off a 100 m cliff horizontally with an initial velocity of 50 m/s. The goal is to have the cannonball t

Lady bird [3.3K]

Answer: It will fall short of its goal.

Explanation: I took the quiz.

6 0

3 years ago