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Leokris [45]
3 years ago
7

An alpha particle has a mass number of 2. a. True b. False

Chemistry
1 answer:
Sphinxa [80]3 years ago
5 0
B. False. An alpha particle is a Helium nucleus which has a mass of 4 as it is made from 2 neutrons and protons each with mass of +1.
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Le Chatelier's principle (D)
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2 years ago
Explain why hydrogen exhibits properties similar to those of both lithium and fluorine?
PtichkaEL [24]

Hydrogen exhibit similar properties with lithium because both are in the same group 1 as they both have a valence electron of 1

  • Hydrogen also exhibit some similar properties with fluorine simply because they are both non metals

<h3>What is an element?</h3>

An element is a substance which cannot be split into simpler forms by an ordinary chemical process. This simply goes to say that elements are substances which cannot be decomposed into simpler substances by ordinary chemical reactions.

An atom is the smallest unit or part of an element which can take part in a chemical reaction.

On a general note, elements are classified as thus:

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So therefore, hydrogen exhibit similar properties with lithium because both are in the same group 1 as they both have a valence electron of 1

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Learn more about atoms and elements:

brainly.com/question/6258301

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1 year ago
Which statement justifies that phosphine (PH3) is a polar molecule?
lorasvet [3.4K]
The P-H bond is polar and the molecule is asymmetric.

Non-polar bonds cannot produce polar molecules and symmetric bonds result in even distribution of charge, so no net charge is observed.
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3 years ago
How many molecules are in 643.21 grams of Mg3(PO4)2?
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= 1.4735E24     [Mg3(PO4)2]

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2 years ago
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