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Diano4ka-milaya [45]
3 years ago
9

Why do elements in the same period of the periodic table have different properties?

Chemistry
1 answer:
Alexxandr [17]3 years ago
5 0
Elements in the same period have different properties because the number of valence electrons in their outermost shells differ. ... In a given column or group, all elements have the samenumber of electrons in their outermost shells. For example, in group 2, allelements have two electrons in their outermost shell.Sep 29, 2020
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Need help with chemistry.
Sveta_85 [38]

Answer:

2, Argon PLEASE VOTE 5.0 MARK ME BRAINLIEST AND THANK ME

Explanation:

2,Argon because its only logic answer PLEASE VOTE 5.0 MARK ME BRAINLIEST AND THANK ME

3 0
4 years ago
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Identify the bronsted-lowry acid and the bronsted-lowry base in this reaction on the left side of each of the following equation
Dahasolnce [82]

<u>Answer:</u> NH_4^+ is an acid, CN^- is a base, NH_3 is conjugate base and HCN is conjugate acid

<u>Explanation:</u>

According to Bronsted and Lowry's theory:

An acid is defined as a proton donor while a base is defined as a proton acceptor.

In a chemical reaction, an acid loses a proton to form a conjugate base while a base accepts a proton to form conjugate acid.

For the given chemical reaction:

NH_4^+(aq)+CN^-(aq)\rightleftharpoons HCN(aq)+NH_3(aq)

NH_4^+ is losing a proton thus it is an acid to form NH_3 which is its conjugate base

CN^- is gaining a proton thus it is a base to form HCN which is its conjugate acid

Hence, NH_4^+ is an acid, CN^- is a base, NH_3 is conjugate base and HCN is conjugate acid

7 0
3 years ago
Which is a binary compound?
nirvana33 [79]

Answer:

it is made up of two or more element

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Which would most likely be joined by an ionic bond?
sertanlavr [38]
<span>b) a positive metal ion and a negative nonmetal ion. 


</span>Because generally ions of non-metal elements (such as the halogens) are negatively charged while ions of metal elements (such as the alkali earth metals) are positively charged. The differences in their changes causes strong electrostatic attraction (an ionic bond).
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Why is carbon an important element in the chemistry of organisms? (hint: it's about the number of bonds)
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