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lbvjy [14]
3 years ago
6

How many protons and neutrons are in an atom of ^249 Bk?

Chemistry
1 answer:
umka21 [38]3 years ago
7 0
Bk has an atomic number of 97 meaning that there are 97 protons and 152 neutrons.
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An atom gets over all positive charge by ____ _______
Rasek [7]
<h2>Answer:</h2>

Nucleus.

<h2>Explanation:</h2>
  • In an atom the nucleus has an overall positive charge as it contains the protons.
  • Every atom has no overall charge (neutral). While atoms do contain charged particles, they have the same number of positive protons as negative electrons( for example a sodium atom has 11 electrons which are of negative charge and 11 protons which are of positive charge).
  • These opposite charges cancel each other out making the atom neutral.

Result: Nucleus is the overall positive charge of an atom.

4 0
4 years ago
What is the difference between cell and cellmembrane​
lisov135 [29]

Answer:

So, a cell, in easiest terms, is "the building blocks of life". Without cells, humans, plants, animals, and anything else that has a cell would not be able to survive. Cells are extremely important to our bodies. Whereas a Cell Membrane is an organelle inside a cell. The Cell Membrane's job is to provide protection for the cell, as well as deciding which substances can enter and exit the cell.

I hope this helps!

3 0
3 years ago
What type of medium can a compression shock wave be transmitted through?
Margarita [4]
It seems that you have missed the necessary options for us to answer this question, but anyway, here is the answer. The type of medium that a compression wave can be transmitted through is liquids only. <span>When a wave moves faster than the local speed of sound in a fluid, it is a shock wave. Hope this answer helps. </span>
3 0
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Define the following terms.<br> a. Capillary action<br> b. Chromatogram
jonny [76]

Answer:

<em>1</em><em>.</em><em>Capillary action is important for moving water (and all of the things that are dissolved in it) around. </em>

<em>2</em><em>.</em><em>the pattern formed on an adsorbent medium by the layers of components separated by chromatography. </em>

Explanation:

hope this help you

6 0
3 years ago
Why do scientists use models to study atoms?
umka2103 [35]
Because atoms are the small and can't be seen by your eyes. It is so small that scientists need to use a model. A model help scientists study things. So, scientists needs to study atoms using models.
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