1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lisov135 [29]
2 years ago
10

sketch and label a helium-4 atom and helium-5 atom to include the protons, neutrons, and electrons. how are they alike and how a

re they different?
Chemistry
2 answers:
Doss [256]2 years ago
8 0

Answer:

Protons-2 for both

neutrons-2 for helium-4 and neutrons-3 for helium-5

electrons-1 for both

Explanation:

draw a ring and put protons and neutrons in the middle and the electrons on the ring

Naily [24]2 years ago
4 0

Answer:

U cant sketch on here mate

Explanation:

You might be interested in
Identify the compound with the smallest percent ionic character. identify the compound with the smallest percent ionic character
rosijanka [135]
<span> I'll try. A purely ionic bond, as the name implies is a bond between ions. If that sounds like double-talk it's because some ionic compounds are more ionic than others. A purely covalent compound is one in which the electrons are shared EQUALLY. It turns out that the only compounds in which the electrons are shared equally is one in which both atoms sharing the electrons are of the same element. For example O2, N2, Cl2, I2 or F2. Now suppose you make a compound between Fluorine and Iodine, IF. Since fluorine has a greater attraction for electrons than iodine, the bond will be polar. That is the fluorine part of the molecule will be negative and the iodine part will be positive. The attraction for electrons isn't equal. The same thing happens with ionic bonds. In your first question, the ionic character decreases from NaF through SiF4. Sodium loses an electron quite readily because it achieves a stable neon like configuration. Fluorine attracts an electron very strongly for the same reason. But as you move across the period, two things are happening. First, look at SiF4. Silicon is right in the middle of the period, It can achieve a stable inert gas configuration either by gaining 4 or losing 4 electrons. So it depends upon the electronegativity (the electron grabbing ability) of the atom it's combining with. Since Fluorine has the highest electron grabbing ability of any of the reactive elements, it will tend to pull the electrons away from silicon. But silicon doesn't completely give them up as it would in a purely ionic compound. AlF3 is similar but will tend to give up 3 electrons a little easier than SiF4. MgF2 is even more ionic because it's approaching an inert gas configuration and only need to lose 2 electrons. Can you see what's happening? The closer you get to the middle of a period, the less likely an atom is to give up COMPLETELY its electrons. In question 2 your answer is CO. The elements are close together (which means that their electronic structure is similar) and carbon, like silicon is in the middle of the period so its more likely to share electrons than it is to give them up (form an ionic bond). So it turns out that most chemical bonds are neither completely ionic or covalent but lie in between the two extremes and are called polar covalent. I hope this helps.</span>
4 0
3 years ago
Which electromagnetic wave has the least energy ? visible light microwave infrared light gramma ray
levacccp [35]
I believe the answer is microwaves
5 0
2 years ago
Explain why different liquids boil at the different temperatures
Gennadij [26K]

The boiling point of the fluid depends on the intermolecular forces between the fluid atoms and molécules, as these forces must be disrupted to switch from a fluid to a gas. The stronger the intermolecular forces, the greater the point of boiling.

4 0
2 years ago
Read 2 more answers
An automobile tire contains air at 320.×103 Pa at 20.0 ◦C. The stem valve is removed and the air is allowed to expand adiabatica
NISA [10]

Answer:

6.15.3 k

Explanation:

From the question we can see that

q = 0,  Δu = w

Then,

T_f = \frac{C_{V,m}+RP_{ext}P_i}{C_{V,m}+RP_{ext}P_f} T_i

putting values wet

=\frac{2.5\times 8.314+8.314\left(10^5\right)\left(3.20\times 10^5\right)}{2.5\times 8.314+\left(8.314\right)\left(10^5\right)\left(10^5\right)}\times \:293

T_f = 615.3 K

6 0
3 years ago
Why is smoke filling up a room diffusion or not diffusion
miv72 [106K]
It is diffistion because it moves from an area of high concentration to low
8 0
3 years ago
Other questions:
  • Please HELPPPPP ME ASAP!​
    10·1 answer
  • Zebra mussels have no???
    6·1 answer
  • A voltaic cell is constructed in which the anode is a Zn|Zn2+ half cell and the cathode is a Fe2+|Fe3+ half cell. The half-cell
    5·1 answer
  • Simplify 8k-5(-5k+3)
    15·1 answer
  • 4. What is the rarest element that is natural to earth?
    12·2 answers
  • A compound has an empirical formula of C2H5. What is true about this empirical formula?
    9·1 answer
  • Which material is not a form of pyroclastic material?
    9·1 answer
  • What is described by the VSEPR theory?
    13·1 answer
  • Which of these is an element?
    8·2 answers
  • When completing an experiment, results will be much more accurate if multiple trials are completed and the results averaged. TRU
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!