Answer is: Check for the presence of alpha, beta, and gamma particles.
1) Alpha particle is nucleus of a helium-4 atom, which is made of two protons and two neutrons.
Alpha decay is radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and transforms into an atom with an atomic number that is reduced by two and mass number that is reduced by four.
2) Beta decay is radioactive decay in which a beta ray and a neutrino are emitted from an atomic nucleus.
There are two types of beta decay: beta minus and beta plus.
3) During gamma emission the nucleus emits radiation without changing its composition.
Answer:
Explanation: Driverless cars would require wireless computer technology on every mile of road they travel. This will allow traffic and construction signals to communicate with the cars. ... Finally, traffic monitors could redirect traffic as necessary.
Explanation:
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your answer will be :
B. <u>Na has a lower</u> <u>electronegativity than H</u>
because Na belongs to alkali metals which are least electronegative (most electro positive) but hydrogen is a non metal, it has higher electronegativity as compared to metals like Sodium (Na).
Silver is an example of an element. True. Elements are pure substances that cannot be broken down into simpler substances. An atom is the smallest unit of an element that retains all properties of the element.
Answer:
12.01 g
Explanation:
Molar mass is the number of grams of a substance per mole of it.
Molar masses of elements are actually already present in the periodic table. Looking at carbon (C) on a periodic table, you'll find that its molar mass is approximately 12.01 grams.
