It has 7 electrons
The atomic number for any element is the number of protons in its atomic nuclei. In a neutral atom, the number of electrons are the same as the number of protons. The atomic mass (mass number) is the sum of the protons and neutrons in the nucleus. Mass number can vary due to the fact that the number of neutrons can vary.
Answer:
<h3>As per Kepler's law we know that </h3>
<h3>\frac{T_1^2}{T_2^2} = \frac{R_1^3}{R_2^3}T22T12=R23R13</h3>
<h3>as we know that for earth the time period is 1 year and its distance is 1 AU</h3><h3>now from above formula we can say</h3><h3>let the time period of Neptune is T and its distance is given as R = 30.06 AU</h3><h3>now we will have</h3><h3>\frac{1^2}{T^2} = \frac{1^3}{30.06^3}T212=30.06313</h3><h3>by rearranging the above equation we have</h3><h3>T^2 = (30.06)^</h3><h3>3T2=(30.06)3</h3><h3>T = 164.8 years</h3><h3>T=164.8years</h3>
<h3>so it will have time period of 164.8 years</h3>
Answer:
XCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + X(NO3)2(aq)
Answer:
<h2>2 m/s²</h2>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the force
m is the mass
From the question we have
We have the final answer as
<h3>2 m/s²</h3>
Hope this helps you
The correct answer is option C. Solutions that have more OH– than H+ ions are bases. These are substances that are slippery to touch and has an astringent taste. It reacts with acids in a neutralization reaction forming salts. It accepts protons. Examples are sodium hydroxide and potassium hydroxide.