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3 years ago

What do gamma rays consists of?

2 answers:

4 0

Gamma rays consist of pure energy. Beta particles consist of one electron that is released at high speeds from an unstable nucleus and an alpha particle is a helium nucleus.

We know that Gamma rays consist of pure energy because, during Gamma decay, the atomic and mass numbers remain unchanged. Therefore, only energy is emitted.

Gamma rays are weakly ionising, however, they are strongly penetrating and thick concrete or a few centimetres of aluminium is needed to stop them.

PilotLPTM [1.2K]3 years ago

4 0

pure energy...................................................

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Why does water move into the ground to create groundwater? A. evaporation B. wind C. gravity D. friction

castortr0y [4]

The answer would be C. gravity

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3 years ago

What is the mass in grams of 7.5 x 10^15 atoms of nickel, Ni?

statuscvo [17]

<h3>Answer:</h3>

7.3 × 10⁻⁷ g Ni

<h3>General Formulas and Concepts:</h3>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Reading a Periodic Table
Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<h3>Explanation:</h3>

<u>Step 1: Define</u>

7.5 × 10¹⁵ atoms Ni

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of Ni - 58.69 g/mol

<u>Step 3: Convert</u>

Set up: $\displaystyle 7.5 \cdot 10^{15} \ atoms \ Ni(\frac{1 \ mol \ Ni}{6.022 \cdot 10^{23} \ atoms \ Ni})(\frac{58.69 \ g \ Ni}{1 \ mol \ Ni})$
Multiply: $\displaystyle 7.30945 \cdot 10^{-7} \ g \ Ni$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

7.30945 × 10⁻⁷ g Ni ≈ 7.3 × 10⁻⁷ g Ni

3 0

2 years ago

What three parts make up an atom?

MissTica

The nucleus of an atom is made up of protons and neutrons. Then electrons circle around the nucleus.

Answer:

Proton, Neutron, Electron

8 0

3 years ago

Read 2 more answers

The strongest forces of attraction occur between molecules of(1) HCl (3) HBr(2) HF (4) HI

Alexxandr [17]

It would likely be HF. It displays hydrogen bonding.

4 0

2 years ago

Explain how the removal of thermal energy (heat) from matter affects its particles

den301095 [7]

Answer:

You can change an object's state of matter by adding or removing thermal energy. When you add thermal energy to an object, these things can happen: Particles move faster

Explanation:

6 0

2 years ago