Answer:
Mars is about 224.4 million kilometers from the Sun.
Explanation:
This statement is incorrect. The correct one is presented below:
<em>Mars is 1.5 AU from the Sun. About how many kilometers is Mars from the Sun?</em>
The Astronomical Unit (AU) is a length unit used in Astronomy to measure distances between planets of the Solar System and from the Sun whose units equals to . Since Mars is 1.5 AU from the Sun, we converting this value into kilometers by means of the following simple rule of three:
Mars is about 224.4 million kilometers from the Sun.
Answer:
Because as we move down the group size/ radius of atom increases due to increase in shells and screening effect. The hold of nucleus on valence electrons decreases and effective nuclear charge decreases so it is easy to remove electron from greater sized atoms as compared to smaller sized aroms.
Energy required to remove electron is ionization energy so greater sized atoms have low ionization energy.
Explanation:
Answer:
The height of A is 900
Explanation: Beside A, there is a number which explains what the height is so the answer is A.
Answer:sodium
Explanation: because its not hard to look on the PERIODIC TABLE