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Dennis_Churaev [7]
4 years ago
10

Elements in the periodic table are arranged in columns or

Chemistry
2 answers:
elena-s [515]4 years ago
6 0
They are arranged by their atomic number which can be figured by counting how many protons or electrons they have.
lutik1710 [3]4 years ago
3 0
Maybe by protons i forgot how to spell it :(
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Which of the following radioactive emissions is the least penetrating?
3241004551 [841]

Answer:

alpha particles

Explanation:

alpha particles the least penetrating but potentially most damaging and gamma rays the most penetrating. A beta particle, also called beta ray or beta radiation, is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay.

sana po makatulong

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4 0
2 years ago
Which element has the ground state electron configuration 1s22s22p63s23p3?
Natalka [10]
Its phosphorus (P)In writing the electron configuration for Phosphorus the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Phosphorous go in the 2s orbital. The next six electrons will go in the 2p orbital. The p orbital can hold up to six electrons. We'll put six in the 2p orbital and then put the next two electrons in the 3s. Since the 3s if now full we'll move to the 3p where we'll place the remaining three electrons. Therefore the Phosphorus electron configuration will be 1s22s22p63s23p3.
4 0
3 years ago
How does evidence of chemical
Sliva [168]

Answer:

Changes in Properties Changes in properties result when new substances form. For instance, gas production, formation of a precipitate, and a color change are all possible evidence that a chemical reaction has taken place. ... Change in Color A color change can signal that a new substance has formed.

Explanation:

4 0
2 years ago
What would be the effect on the observed melting point of sample were poorly packed?
Neko [114]
If a sample is packed poorly, the sample will not heat evenly and will take longer to melt.
5 0
3 years ago
In what way are electrons quantized?
KiRa [710]

<u>Answer:</u> The correct option is A) They have fixed energy values.

<u>Explanation:</u>

Electron is one of the sub-atomic particle present around the nucleus of an atom which is negatively charged.

In an atomic model, it is assumed that the electron revolves around the nucleus in discrete orbits having fixed energy levels.

These electrons when jumping from one energy level to another, some amount of radiation is either emitted or absorbed.

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Hence, the correct option is A) They have fixed energy values.

6 0
3 years ago
Read 2 more answers
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