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3 years ago

Which choice has the element groups in the correct order. from left to right on the periodic table?

1 answer:

3 0

Since you did not include the choices, I am going to teach you the order of all the groups from letf to right on the periodic table.

The order from let to right is 1, 2, 3, 4, ...., 13, 14, 15, 16, 17, 18.

Group    Family

1            Alakalyne metals is the group at the left end.

2           alkakalyne earth metals, is the next group from left to right

3 to 12    transition metals
        3     scandium family
        4     titanium family
        5     vanadium family
        6     chromium family
        7     manganese family
        8     iron family
        9     cobalt family
       10    niquel family
       11    copper family (aka coinage metals)
       12    zinc family (aka volatile metals)

13           boron family, aka icosagens

14            carbon family, aka crystallogens

15            nitrogen family, aka pnictogens

16            oxygen family, aka chalcogens

17            halogens

18            noble gases: is the group at the right end.

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3 years ago

A purse at radius 2.30 m and a wallet at radius 3.45 m travel in uniform circular motion on the floor of a merry-go-round as the

ivolga24 [154]

Answer:

The acceleration of the wallet is $3\hat{i}+6\hat{j}$

Explanation:

Given that,

Radius of purse r= 2.30 m

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Acceleration of the purse $a=2\hat{i}+4.00\hat{j}$

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Using formula of acceleration

$a=r\omega^2$

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$\omega=\omega'$

$\sqrt{\dfrac{a}{r}}=\sqrt{\dfrac{a'}{r'}}$

$\dfrac{a}{r}=\dfrac{a'}{r'}$

$\dfrac{a'}{a}=\dfrac{r'}{r}$

$\dfrac{a'}{a}=\dfrac{3.45}{2.30}$

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$a'=\dfrac{3}{2}\times(2\hat{i}+4.00\hat{j})$

$a'=3\hat{i}+6\hat{j}$

Hence, The acceleration of the wallet is $3\hat{i}+6\hat{j}$

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3 years ago

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Answer:

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Explanation:

Ayo hope you enjoy

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2 years ago

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