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4 years ago

PLEASE ANSWER THESE QUESTION WILL MARK BRAINLIEST AND GIVE 5 STARS AND A THANKS!!!

Physics

1 answer:

ipn [44]4 years ago

7 0

Answer:

The answer to your question is below.

Explanation:

Question 10.

Halogens are a group in the periodic table (VIIA), these elements have seven electrons in their outermost shell. Examples of halogens are Chlorine, Fluorine, and Bromine.

The correct answer is the first one.

Question 2.

The answer is false, in a neutral atom, the number of protons and electrons are equal but the number of neutrons is different.

Question 3

Nine is the atomic number of fluorine

Question 4

Group is correct

Question 5

True, elements with similar electron configurations are in the same group, so they have similar chemical and physical properties.

Question 6

Alkali metals and have one valence electrons.

Question 7

True

Question 8

8, elements with 8 electrons in their outermost shell are stable.

Question 9

6, due to oxygen has 6 valence electrons it is in group VIA.

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One kilogram-meter per second squared is also equal to what unit

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3 years ago

A 0.144 kg baseball is moving towards home plate with a speed of 43.0 m/s when it is bunted. the bat exerts an average force of

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As per impulse momentum theorem we know that

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3 years ago

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3 years ago

Read 2 more answers

A 600kg car is moving at 5 m/s to the right and elastically collided with a stationary 900 kg car. What is the velocity of the 9

11111nata11111 [884]

Answer:

$\mathrm{v}_{2} \text { velocity after the collision is } 3.3 \mathrm{m} / \mathrm{s}$

Explanation:

It says “Momentum before the collision is equal to momentum after the collision.” Elastic Collision formula is applied to calculate the mass or velocity of the elastic bodies.

$m_{1} v_{1}=m_{2} v_{2}$