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3 years ago

8

Plz tell me if I'm correct I am terrible at science if I'm not correct me plz correct me!!! I promise I'll give brainliest!!! Oh

and plz don't give me a troll answer for points. Thank you so much!!!

1 answer:

adell [148]3 years ago

5 0

Answer:

You are mostly correcet but im pretty sure that the nonmetals are brittle because they can break easily

Explanation:

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What is the mass number of an atom containing 35 protons and 45 neutrons?

vodka [1.7K]

Answer:

Explanation:

1. Weight = 35 P and 45 N = 80

2. Atom: 35P = 35 electrons

3. Bromine

4. It's a non metal. It's in column 17. It will gain 1 electron (normally).

5. Ion: 35 protons, 36 electrons

6. Charge: - 1 usually, but there are exceptions

7. Anions go to the Anode. The anode attracts minus charged elements.

8. In an uncharged state, element 36 would be next. That would be Krypton which is always uncharged. It is a noble gas.

6 0

2 years ago

sladkih [1.3K]

Answer:

A = 65.46 u

Explanation:

Given that,

The composition of zinc is as follows :

Zn-64 = 48.63%

Zn-66 = 27.90%

Zn-67 = 4.10%

Zn-68 = 18.75%

Zn-70 = .62%

We need to find the average atomic mass of the given element. It can be solved as follows :

$A=\dfrac{48.63\times 64+27.90\times 66+4.1\times 67+18.75\times 68+0.62\times 70}{100}\\A=65.46\ u$

So, the average atomic mass of zinc is 65.46 u.

6 0

2 years ago

What is the name of the atom that has 11 protons, 11 electrons and 12 neutrons?

andrey2020 [161]

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ This atom is Sodium (Na). Sodium is located in group 1 of the periodic table.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0

3 years ago

Read 2 more answers

Draw or sketch something that you might see move. Write a caption that answers the following questions: How would you describe i

olasank [31]

Answer:

lets say your doing a frog

it jumps it speeds up and then slows down

Explanation:

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3 years ago

75 mL of water is measured in a graduated cylinder. The mass of the water should be

a_sh-v [17]

Answer:

D-75 grams

Explanation:

that is the answer

4 0

3 years ago