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JulijaS [17]
3 years ago
15

If an atom has an atomic number of 17 and a mass of 35, how many neutron does it have?

Chemistry
1 answer:
Marysya12 [62]3 years ago
7 0

Answer:

18

Explanation:

(atomic number = protons) mass minus protons= neutrons.

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Is lithium a metal metalloid or non metal
KiRa [710]

Answer:

Metal

Explanation:

Lithium (Li), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group, lightest of the solid elements. The metal itself—which is soft, white, and lustrous—and several of its alloys and compounds are produced on an industrial scale.

Atomic number: 3

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5 0
4 years ago
When the final velocity is less than the initial velocity, this is speed time acceleration deceleration
WITCHER [35]

Hello!

When the final velocity is less than the initial velocity, this is deceleration

<h2>Why?</h2>

Acceleration is defined as the physical magnitude that measures the change in velocity with time. The units to express acceleration are speed over time.

The equation for acceleration is: a=\frac{v-v_o}{t-t_o}

Where: a=acceleration, v=final velocity, vo=initial velocity, t=final time, to=initial time.

If the final velocity is less than the initial velocity, then the acceleration is negative, and that is called deceleration. An example of this is when a car brakes.

Have a nice day!



6 0
3 years ago
Read 2 more answers
Calculate the tempature of a 0.50 mol sample of a gas at a pressure of 0.987 atm and a volume of 12 L
dalvyx [7]

Answer:

The temperature is 288, 88K

Explanation:

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T= PV/nR

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<em>T=288,88K</em>

6 0
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What causes the ocean tides to change from high tide to low tide?
nikdorinn [45]
I think the answer is the moon
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The answer is C. 1:2

Explanation:

5 0
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