1.Nuclear charge decreases as the atomic number increases.Immersive Reader
Answer - True
2.In alkali metals, the atomic radius of potassium is greater than
Answer - Lithium
3.While moving across the periodic table from left to right there is an increase in atomic radius.
Answer - False
4.When moving from gold to lead, the atomic radius increases.
Answer - True
5.The picometer is the unit used to measure atomic radii.
Answer - True
6.Which of the following is larger in atomic size?
Answer - Boron
7.Chlorine has a larger atomic radius than fluorine.
Answer - True
8.Atomic size increases across a period.
Answer - False
9.The atomic radius of a nitrogen atom is 70 pm. What is the distance between the nuclei of two bonded nitrogen atoms in a N2 molecule
Answer - 140 pm
10.Arrange the following atoms in order of decreasing atomic radius:
Ga, As, Sn, Sb, Te
Answer - a. Sn, Sb, Te, Ga, As
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Answer:
2. Chemical Reaction
Explanation:
I am pretty sure that is the only possible answer, but don't be mad if I am wrong.
Answer: Friction.
Explanation:
Friction is responsible for the ball slowing down and stopping on level ground.
Example: A car going 55 mph on a flat, level road. When you release your foot off the gas pedal, the car will gradually slow down until it reaches 0 mph.
Answer:
Some of its limitations are to see how it affects the planes and to observe the damage the birds have taken. Also to see how it affects the planes how much damage was done to the chicken. It is helpful because it makes it so fewer birds are hitting or damaging airplanes every year.
Explanation:
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Answer:
44 years will take for 10 grams of Actinium to decay until there were only 2.5 grams.
Explanation:
The half life it tell you about the time in which half of the quantity of the isotope will decay.
time (years) quantity of isotope (grams)
0 10
22 5
44 2.5