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scoray [572]
3 years ago
8

Describe thomson and millikan contributions to atomic theory

Chemistry
2 answers:
AVprozaik [17]3 years ago
6 0

Thomson's and Millikan's contributions to atomic theory:

Thomson is the first person, who suggest that the theory of the atom contains positive and negative particles and demonstrated the latter which are called "electrons".

Millikan: Millikan discovered that the weight of an electron is 1840 times smaller than a hydrogen atom that is having atomic mass 1.

padilas [110]3 years ago
6 0

Answer:

Thompson discovered the electron and measuring of its charge to mass ratio. Millikan contributed the measurement of electrons charge.

Explanation:

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m_a_m_a [10]

Answer:

Endocrine disruptor

Explanation:

This means that the four substances, even they are used in different areas like gardening, plastics or pots, all of them change the endocrine system in humans because they imitate the natural hormones and the body stops to produce them or starts to produce more hormones than the body needs.

They are correlate with some illness like cancer, thyroid problems and infertility.

7 0
3 years ago
What is the oxidation number of phosphorus (P) in sodium phosphate (Na3PO4)?
joja [24]
Na⁺¹₃P⁺⁵O⁻²₄

+1*3 + (+5) + (-2*4) = 0
8 0
4 years ago
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A basketball player jumps straight up to dunk a basketball. The basketball player's speed increases as she returns to the
katen-ka-za [31]

Options :

The upward force is greater than the downward force.

The downward force is greater than the upward force.

The rightward force is greater than the leftward force.

The leftward force is greater than the rightward force.

Answer:

The downward force is greater than the upward force.

Explanation:

When the player jumps to dunk a basket ball, it requires an upward force exerted on the person due to the push by the person to jump, after dunking the basket ball, the player attains maximum height, where his final velocity becomes zero and his direction changes (from upward to downward), at this point his velocity increases due to the additional force exerted on the player due to the Earth's Gravitational pull - which is a downward force which acts on an object).

Hence, it could be concluded that the increase in speed of the basketball player as she returns to the ground means that the downward force is greater than the upward force acting on the player.

7 0
3 years ago
What is the molarity of an H3PO4solution if 15.0 mL is completely neutralized by 38.5 mL of 0.150 MNaOH? Please explain your ans
rodikova [14]

Answer:

M=Molarity

V=volume

change millilitre to litre

so:15ml=0.015 L

:38.5ml=0.0385 L

M1V1=M1V1

M1* 0.015 L= 0.15M*0.0385 L

M1=0.00385

8 0
4 years ago
CAN SOMEONE HELP ME!!!
NISA [10]

Answer:

I think D

Explanation:

4 0
3 years ago
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